1. [ noun ] the feeling that accompanies an experience of being thwarted in attaining your goals
Synonyms: defeat
Related terms: disappointment thwart
2. [ noun ] an act of hindering someone's plans or efforts
Synonyms: thwarting foiling frustrating
Related terms: hindrance thwart
3. [ noun ] a feeling of annoyance at being hindered or criticized

"her constant complaints were the main source of his frustration"

Related terms: annoyance thwart
Similar spelling:   frustrating