(of arguments etc) showing hate, bitterness and disappointment

nasty in behavior, speech

of or at a crisis

fault-finding, detracting

(of speech, words etc) showing bad behaviour, a bad quality etc or one's low opinion; damaging a good reputation

offensive, uncomplimentary

too critical, especially of small faults

captious

too critical

very critical

full of complaints

grouchy, hard to please

not friendly

nasty, hostile