important Antonyms

unimportant petty negligible slight subordinate inconsequential nugatory trivial nonessential trifling immaterial frivolous picayune paltry irrelevant inessential insignificant piddling secondary minor unsignificant sycophantish unessential tautologic tiny unmeaning weak undistinctive uncapable trite unknown unfrequent supplementary supplemental scant scratcher second second-class small stipendiary recusant strengthless subalternate substituent succedaneum superaddition superficial superfluous supernumerary supervenient