definition of
[frustration]

[1] #1 frustration n. [defeat] the feeling that accompanies an experience of being thwarted in attaining your goals. wn

[2] #2 frustration n. [thwarting, foiling] an act of hindering someone's plans or efforts. wn

[3] #3 frustration n. a feeling of annoyance at being hindered or criticized; "her constant complaints were the main source of his frustration". wn