disgruntled[adjective]Synonyms: discontented, annoyed, displeased, dissatisfied, grumpy, irritated, peeved, put out, vexed
[TahlilGaran] English Synonym Dictionary ▲
dis‧grun‧tled /dɪsˈɡrʌntld/
adjective[
Date: 1600-1700;
Origin: gruntle 'to complain' (15-19 centuries), from grunt]
annoyed or disappointed, especially because things have not happened in the way that you wanted:
a disgruntled client [TahlilGaran] Dictionary of Contemporary English ▲