FRUSTRATE

v. 1 thwart, foil, stymie, block, baffle, check, balk or baulk, disappoint, discourage, forestall, prevent, stop, halt, cripple, hinder, hamper, impede, hamstring, defeat, counteract, neutralize, nullify, counter, fight off, repel, repulse So far, we have been able to frustrate take-over bids for the company 2 discourage, disappoint, upset, exasperate I feel frustrated because mother won't let me help with the bills