- bloody-minded, cantankerous - stubbornly obstructive and unwilling to cooperate; "unions...have never been as bloody-minded about demarcation as the shipbuilders"- Spectator
Antonym: docile (indirect, via stubborn)
- cantankerous, crotchety, ornery - having a difficult and contrary disposition; "a cantankerous and venomous-tongued old lady"- Dorothy Sayers
Antonym: good-natured (indirect, via ill-natured)