We have all met one such bitter and cranky man at some point of time, haven’t we? We can also label these cynical men as rancorous, ones with a bitter expression and full of ill-will all the time.
There are a number of synonyms of this word that exhibit the same sentiment. Would be great if you look them up.
Meaning of Rancorous:
1. Bitter, long-lasting resentment; deep-seated ill will.