Merriam-Webster Online Dictionary
frustrate (verb)transitive verb
1.
a) to balk or defeat in an endeavor
b) to induce feelings of discouragement in
2.
a) (1) to make ineffectual bring to nothing
(2) - impede obstruct
b) to make invalid or of no effect
characterized by - frustration
Merriam-Webster Online Thesaurus
frustrate (verb)1.
to prevent from achieving a goal
SYNONIMS:
baffle, balk, beat, checkmate, discomfit, foil, thwartRELATED WORDS:
bar, block, clog, encumber, fetter, hamper, handicap, hinder, hobble, hold back, impede, inhibit, interfere (with), manacle, obstruct, shackle, tie up, trammel; arrest, check, halt, set back, short-circuit, stall, stop; avert, forestall, obviate, preclude, prevent; negate, neutralize, nullify; counteract, offset; conquer, defeat, overcomeNEAR ANTONYMS:
abet, aid, assist; ease, facilitate, smooth2.
to lessen the courage or confidence of
SYNONIMS:
chill, daunt, demoralize, dishearten, dismay, dispirit, frustrate, unman, unnerveRELATED WORDS:
browbeat, bully, cow, intimidate; depress, sadden, weigh; afflict, try; damp, dampen, deaden; distress, trouble; bother, irk, vex, worry; debilitate, enfeeble, undermine, weaken; frighten, horrify, scareNEAR ANTONYMS:
buoy (up), cheer, gladden; animate, enliven, invigorate; enforce, fortify, reinforce ( reenforce), strengthen; assure, reassure; boost, energize, excite, galvanize, inspire, lift, provoke, quicken, rally, stimulate, stir