Synonyms and Antonyms of SIGNIFICANT

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>
Antonyms unexpressive
indicating something <the town's generous library budget is significant of the value its residents place on learning>
sufficiently large in size, amount, or number to merit attention <paid a significant amount of money for the movie rights to the book>
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
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