| discourteous(adjective, hard, severe, sharp, nasty) |
| disobedient(adjective, persistent, obstinate, insistent, dogged) |
| dogged(verb, tough, firm, unreasonable, grim) |
| dour(adjective, hard, severe, sharp, rude) |
| easily upset(expression, adjective, passionate, unstable, unpredictable) |
| erratic(adjective, passionate, unstable, unpredictable, unreliable) |
| evil(adjective, mean, sharp, nasty, offensive) |
| exacting(adjective, persistent, obstinate, insistent, dogged) |
| execrable(adjective, nasty, terrible, disgusting, vicious) |
| explosive(adjective, passionate, unstable, unpredictable, unreliable) |
| fault-finding(mean, irritable, obstinate, crabby, cranky) |
| feisty |
| fickle(adjective, passionate, unstable, unpredictable, unreliable) |
| fiery(adjective, passionate, unstable, unpredictable, unreliable) |
| fire-eating(energetic, antagonistic, aggressive, argumentative, contentious) |
| fixed(tough, firm, unreasonable, inflexible, obstinate) |
| foul(adjective, nasty, violent, terrible, wild) |
| fretting(mean, cross, irritable, ugly, obstinate) |
| gladiatorial(energetic, antagonistic, aggressive, argumentative, contentious) |
| got up on wrong side of bed(expression, idiom, irritable, ugly, crabby) |