Antonyms for insignificant

Antonyms of adj insignificant

4 senses of insignificant

Sense 1:

insignificant, undistinguished

INDIRECT (VIA unnoticeable) -> noticeable

Sense 2:

insignificant

INDIRECT (VIA meaningless) -> meaningful

Sense 3:

insignificant, peanut

INDIRECT (VIA minor) -> major

Sense 4:

insignificant (vs. significant), unimportant

significant (vs. insignificant), important
momentousepochal, epoch-makingearthshaking, world-shaking, world-shatteringevidential, evidentiaryfundamental, profoundlargemonumentalnoteworthy, remarkableprobative, probatoryoperativeportentous, prodigious