1. thwart, queer, spoil, scotch, foil, cross, frustrate, baffle, bilk, prevent, forestall, foreclose, preclude, forbid

usage: hinder or prevent (the efforts, plans, or desires) of; "What ultimately frustrated every challenger was Ruth's amazing September surge"; "foil your opponent"

2. torment, rag, bedevil, crucify, dun, frustrate, harass, hassle, harry, chivy, chivvy, chevy, chevvy, beset, plague, molest, provoke

usage: treat cruelly; "The children tormented the stuttering teacher"


1. frustrating, discouraging (vs. encouraging)

usage: discouraging by hindering

2. frustrating, frustrative, thwarting, preventive (vs. permissive), preventative

usage: preventing realization or attainment of a desire

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