Thesaurus

flat

adjective

Synonyms and Antonyms of flat

  1. 1 being neither more nor less than a certain amount, number, or extent industrial growth has been a flat two percent for each of the last four quarters Synonyms of flat exact, even, precise, roundNear Antonyms of flat approximate, comparative, near, relative; imprecise

  2. 2 causing weariness, restlessness, or lack of interest a flat portrayal of Benjamin Franklin in the new TV series Synonyms of flat arid, colorless, drab, dreary, drudging, dry, dull, dusty, boring, heavy, ho-hum, humdrum, jading, jejune, leaden, mind-numbing, monochromatic, monotonous, numbing, old, pedestrian, ponderous, slow, stale, stodgy, stuffy, stupid, tame, tedious, tiresome, tiring, uninteresting, wearisome, weary, wearyingWords Related to flat aseptic, barren, blah, dullish, pleasureless, prosaic, prosy, soggy, spiritless; blank, earthbound, gray (also grey), inanimate, pallid, pedantic, sterile, suspenseless, undramatic, uneventful, unexciting, unimaginative, uninspiring, unnewsworthy, unrewarding, unsensational, unspectacular; annoying, bothersome, irksome, irritating; longsome; palling; draining, enervating, exhausting, fatiguing, wearing; debilitating, enfeebling; demoralizing, discouraging, disheartening, dispiriting; common, commonplace, ordinary, tepid, unexceptional, unsurprising, vapid; cumbersome, lumbering, plodding, poky (or pokey)Near Antonyms of flat amazing, astonishing, astounding, awesome, eye-opening, fabulous, marvelous (or marvellous), sensational, spectacular, surprising, wonderful, wondrous; animating, breathtaking, electrifying, energizing, enlivening, exciting, exhilarating, galvanizing, hair-raising, inspiring, invigorating, rip-roaring, rousing, stimulating, stirring, thrilling; amusing, diverting, entertaining; moving, poignant, touching; alluring, attracting, attractive, beguiling, bewitching, captivating, charming, enchanting, enthralling, entrancing, fascinating; mesmerizing, spellbinding; suspenseful; arresting, provocative, tantalizingAntonyms of flat absorbing, engaging, engrossing, gripping, interesting, intriguing, involving, riveting

  3. 3 having a surface without bends, breaks, or irregularities preferred riding her bike on a flat road Synonyms of flat even, level, flush, plane, smoothWords Related to flat exact, uniform; aligned (also alined), regular, true; horizontal, tabular; plumb, straight, verticalNear Antonyms of flat inexact, irregular, unaligned, warped; undulating, undulatory, wavy; pitted, pockmarked, pockyAntonyms of flat bumpy, coarse, lumpy, rough, uneven, unsmoothed

  4. 4 having been established and usually not subject to change charged a flat rate for overseas calls Synonyms of flat certain, determinate, final, firm, fixed, frozen, hard, hard-and-fast, inexpugnable, set, settled, stableWords Related to flat nonadjustable, noncancelable, nonnegotiable, unchangeable; constant, steady, unchanging, uniform, unwavering; definite, exact, explicit, specific; given, stated, stipulated; dependable, good, reliable, responsible, safe, solid, sure, tried, tried-and-true, true, trustworthy, trustyNear Antonyms of flat adjustable, changeable, negotiable; indefinite, open-ended, unspecified; capricious, changeful, flickery, fluctuating, fluid, inconstant, mercurial, mutable, temperamental, uncertain, unpredictable, unsettled, unstable, unsteady, variable, volatile

  5. 5 having no exceptions or restrictions a flat denial of the charges Synonyms of flat all-out, arrant, blank, blooming [chiefly British], bodacious [Southern & Midland], categorical (also categoric), clean, complete, consummate, cotton-picking, crashing, damn, damned, dead, deadly, definite, downright, dreadful, fair, absolute, flat-out, out-and-out, outright, perfect, plumb, profound, pure, rank, regular, sheer, simple, stark, stone, straight-out, thorough, thoroughgoing, total, unadulterated, unalloyed, unconditional, unmitigated, unqualified, utter, veryWords Related to flat authentic, classic, genuine, real, veritable; constant, endless, eternal, perpetual, undying, unremitting; extreme, unrestricted; confirmed, habitual, hopeless, inveterate; extraordinary, frightful, horrible, huge, main, superlative, supreme, surpassing, terrible, terrificNear Antonyms of flat doubtful, dubious, equivocal, qualified, questionable, restricted, uncertain

  6. 6 lacking a surface luster or gloss used a flat paint for the condo's interior walls Synonyms of flat dim, dull, dulled, matte, lusterlessWords Related to flat tarnished, unpolished; cloudy, dingy, dirty, drab, lackluster, mousy (or mousey), muddy; gray (also grey), leaden, pale, palish; black, dark, darkened, darkish, dimmed, dusky, gloomy, murky, obscure, obscured, pitch-black, pitch-dark, somber (or sombre), stygian, tenebrific, tenebrousNear Antonyms of flat buffed, burnished, glazed, lacquered, polished, rubbed, shellacked, varnished; satin, satiny; silken, silky; slick, slippery; gemmy, gleaming, glimmering, glinting, glistening, glittering, scintillating, shimmering, shining, sparkling, twinkling; beaming, bedazzling, bright, brightened, brilliant, candescent, dazzling, effulgent, fulgent, glowing, incandescent, lambent, lucent, lucid, luminous, radiant, refulgent, resplendent, shiningAntonyms of flat glossy, lustrous, shiny, sleek

  7. 7 lacking in qualities that make for spirit and character a dull, flat person who couldn't come up with an original idea to save her life Synonyms of flat banal, wishy-washy, insipid, milk-and-water, namby-pamby, wateryWords Related to flat unexciting, uninspiring, unrewarding; bland, boring, drab, dreary, dry, dull, heavy, humdrum, jading, leaden, lifeless, monotonous, pedestrian, ponderous, tedious, tiresome, tiring, uninteresting, vapid, wearisome, weary, wearying; inane; innocuous, inoffensive; mild, soft, subdued, tame, weak; common, commonplace, ordinary, stale, unexceptionalNear Antonyms of flat piquant, poignant, pungent, racy, spicy; meaty, substantial; entertaining, exciting, galvanizing, inspiring, invigorating, thrilling

  8. 8 lacking in taste or flavor this pasta dish tastes a little flat Synonyms of flat dead, insipid, flavorless, savorless, tasteless, unsavoryWords Related to flat bland, dilute, thin, watery, weak; plain, unflavoredNear Antonyms of flat disgusting, distasteful, loathsome, sickening, unappetizing, unpalatable; cloying, mawkish; appetizing, delectable, delicious, palatable, toothsome; keen, piquant, seasoned, spicy; flavored; heavy, richAntonyms of flat flavorful, flavorsome, sapid, savory (also savoury), tasteful, tasty

Synonym Discussion of flat

level, flat, plane, even, smooth mean having a surface without bends, curves, or irregularities. level applies to a horizontal surface that lies on a line parallel with the horizon.
    • the vast prairies are nearly level
flat applies to a surface devoid of noticeable curvatures, prominences, or depressions.
    • the work surface must be flat
plane applies to any real or imaginary flat surface in which a straight line between any two points on it lies wholly within that surface.
    • the plane sides of a crystal
even applies to a surface that is noticeably flat or level or to a line that is observably straight.
    • trim the hedge so it is even
smooth applies especially to a polished surface free of irregularities.
    • a smooth skating rink


flat

noun, chiefly British

Synonyms and Antonyms of flat

  1. a room or set of rooms in a private house or a block used as a separate dwelling place had to take on a third roommate in order to afford the bigger flat Synonyms of flat diggings [chiefly British], digs, apartment [chiefly British], lodgings, suite, tenementWords Related to flat bed-sitter (also bedsit or bed-sitting-room) [British], cohousing, condo, condominium, duplex, duplex apartment, efficiency, efficiency apartment, flatlet [British], floor-through, garden apartment, granny flat [chiefly British], maisonette, penthouse, railroad flat, salon, saloon [chiefly British], studio, studio apartment, triplex, walk-up; gallery, wing; apartment building, apartment house, tenement house



Seen and Heard

What made you want to look up flat? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!