Synonyms of significant in English:

significant


See definition of significant

adjective

1‘a significant increase in sales’

SYNONYMS
notable, noteworthy, worthy of attention, remarkable, outstanding, important, of importance, of consequence, consequential
serious, crucial, weighty, material, appreciable, momentous, of moment, memorable, unforgettable, pronounced, marked, considerable, obvious, conspicuous, striking, glaring, signal, impressive, uncommon, unusual, rare, extraordinary, exceptional, particular, special
ANTONYMS

insignificant, minor

2‘he gave her a significant look’

SYNONYMS
meaningful, expressive, eloquent, informative, revealing, indicative, suggestive, symbolic, relevant, pregnant, knowing, telling, pithy, valid, purposeful
ANTONYMS

meaningless