essential Antonyms

inessential nonessential non-essential unessential supplemental supplanter worthless supervenient supernumerary superimposed superfluous supplementary surplus weed useless undistinctive trivial trifling token tertiary tautologic superficial superaddition second residuary redundant qualifier pointless plectrum piddling pickaxe secondary slight substituent subsidiary subservient subordinate subalternate sub stand-by small picayune unimportant least possible penlight overpayment off-site part-time liminal nurtural