principal Antonyms

petty superaddition superfluous supernumerary supervenient supplanter supplemental supplementary trifling trivial underling unessential vicegerent waterman succedaneum substituent subsidiary pickthank poor residuary salutatorian second secondary second-class second-rate side slight small subalternate subordinate worker worst footling underdog low-grade meter maid undistinguished fence-sitter small-time nurtural part-time penlight second gear second string spare part bottommost bush league pinch hitter unimportant unnecessary