Antonyms for aid

help, support:

harm, opposition, blockage, handicap, hindrance, injury, penalty, unkindness, stop, loss, impediment, obstruction, hurt, silence, ill will, disfavor, stoppage, taking, damage, malevolence.

noun:

deterrence, counteract, impede, disapprove, confound, deter, encumbrance, hindrance, dissuade, constraint, expose, frustration, restraint, stranglehold, denounce, discourage, discouragement, inhibitor, repression, hinder, disconcert.

help, support:

deter, upset, obstruct, injure, impede, hinder, discourage, burden, block.