significant

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adjective

Definition of SIGNIFICANT

1

clearly conveying a special meaning (as one's mood) <after remarking that tardiness was on the rise, our boss cast a significant glance my way>

Synonyms eloquent, meaning, meaningful, pregnant, revealing, revelatory, significant, suggestive

Related Words graphic (also graphical), pictorial, vivid; evocative, redolent, reminiscent; sententious, weighty; flavorful, full-bodied, rich

Antonyms unexpressive

2

indicating something <the town's generous library budget is significant of the value its residents place on learning>

Synonyms denotative, denoting, reflective, significant, signifying, telltale

Related Words alluding, allusive, referring; characteristic, symptomatic; demonstrative, exhibiting, expressive; symbolic (also symbolical); connoting, hinting, implying, insinuating, suggestive

3

having great meaning or lasting effect <made a significant change in the procedure for applying for citizenship>

Synonyms big, consequential, earthshaking, earth-shattering, eventful, historic, major, material, meaningful, momentous, monumental, much, significant, substantial, tectonic, weighty

Related Words decisive, fatal, fateful, strategic; earnest, grave, heavy, serious, sincere; distinctive, exceptional, impressive, outstanding, prominent, remarkable; valuable, worthwhile, worthy; distinguished, eminent, great, illustrious, noble, notable, noteworthy, outstanding, preeminent, prestigious; famous, notorious, renowned; all-important, central, critical, crucial, essential, key, pivotal, seminal, vital

Near Antonyms paltry, petty, worthless; anonymous, nameless, obscure, uncelebrated, unknown

Antonyms inconsequential, inconsiderable, insignificant, little, minor, negligible, slight, small, trifling, trivial, unimportant

4

having great power or influence <a producer who is playing a significant role in the creation of the new film>

Synonyms heavy, heavy-duty, influential, mighty, potent, powerful, puissant, significant, strong

Related Words high-level, senior, top; able, capable, competent, effective, efficient; authoritarian, autocratic (also autocratical), despotic, dictatorial, magisterial, tyrannical (also tyrannic); celebrated, distinguished, dominant, eminent, famed, famous, great, illustrious, noble, notable, noteworthy, notorious, outstanding, preeminent, prestigious, prominent, renowned; dynamic, energetic, forceful, high-powered, robust, vigorous

Near Antonyms feeble, flimsy, frail, infirm; anonymous, nameless, obscure, uncelebrated, unknown; incapable, incompetent, ineffective, inept, inexpert, unfit, unqualified, unskilled, unskillful

Antonyms helpless, impotent, insignificant, little, powerless, unimportant, weak

5

sufficiently large in size, amount, or number to merit attention <paid a significant amount of money for the movie rights to the book>

Synonyms biggish, good, goodly, handsome, healthy, largish, major, respectable, significant, sizable (or sizeable), substantial, substantive, tidy

Related Words big, bulky, hefty, hulking, outsize (also outsized), oversize (or oversized), voluminous; astronomical (also astronomic), bumper, colossal, elephantine, enormous, gigantic, great, herculean, huge, immense, jumbo, king-size (or king-sized), mammoth, massive, monstrous, monumental, prodigious, titanic, tremendous, whopping

Near Antonyms measly, minute, paltry, petty, picayune, picayunish, piddling, puny, trifling, trivial, unimportant; marginal, meager (or meagre), slight; little, small, tiny, undersized (also undersize); bitty, diminutive, miniature, pint-size (or pint-sized), pocket, pocket-size (also pocket-sized), pygmy, smallish

Antonyms inconsequential, inconsiderable, insignificant, insubstantial, negligible, nominal