The definition of 'frustrateing' & the word 'frustrateing' in example sentences or phrases

Verb
1
hinder or prevent (the efforts, plans, or desires) of
  1. What ultimately frustrated every challenger was Ruth's amazing September surge
  2. foil your opponent
2
treat cruelly
  1. The children tormented the stuttering teacher

Synonyms of the word 'frustrateing' & Antonyms of the word 'frustrateing'.

Verb
Synonymsbilk, cross, queer, spoil, frustrate, baffle, foil, thwart, scotch, dun, frustrate, torment, rag, crucify, bedevil,