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 exact, even, precise, roundNear Antonyms 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 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, wearyingRelated Words 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 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 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 even, level, flush, plane, smoothRelated Words exact, uniform; aligned (also alined), regular, true; horizontal, tabular; plumb, straight, verticalNear Antonyms inexact, irregular, unaligned, warped; undulating, undulatory, wavy; pitted, pockmarked, pockyAntonyms 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 certain, determinate, final, firm, fixed, frozen, hard, hard-and-fast, inexpugnable, set, settled, stableRelated Words 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 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 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, veryRelated Words 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 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 dim, dull, dulled, matte, lusterlessRelated Words 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 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 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 banal, wishy-washy, insipid, milk-and-water, namby-pamby, wateryRelated Words 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 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 dead, insipid, flavorless, savorless, tasteless, unsavoryRelated Words bland, dilute, thin, watery, weak; plain, unflavoredNear Antonyms disgusting, distasteful, loathsome, sickening, unappetizing, unpalatable; cloying, mawkish; appetizing, delectable, delicious, palatable, toothsome; keen, piquant, seasoned, spicy; flavored; heavy, richAntonyms flavorful, flavorsome, sapid, savory (also savoury), tasteful, tasty



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 diggings [chiefly British], digs, apartment [chiefly British], lodgings, suite, tenementRelated Words 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!

WORD OF THE DAY

of yeast or being unsettled or frivolous

Get Word of the Day daily email!

Love words? Need even more definitions?

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