Antonyms for unimportant

Antonyms of adj unimportant

2 senses of unimportant

Sense 1:

unimportant (vs. important)

important (vs. unimportant), of import
all-important(prenominal), all important(predicate), crucial, essential, of the essence(predicate)alphabetabigburning(prenominal)cardinal, central, fundamental, key, primalchief(prenominal), main(prenominal), primary(prenominal), principal(prenominal), master(prenominal)consequential, eventfulCopernicandistinguishedgrandgrave, grievous, heavy, weightygreat, outstandinghistoricin-chief(postnominal)measurablemost-valuableseriousstrategic

Sense 2:

insignificant (vs. significant), unimportant