| apathy | lack of interest; lack of enthusiasm, or energy |
| desultory | aimlessly passing from one thing to another; unfocused; half-hearted |
| volatile | unstable; unpredictable |
| prevarication | an indirect or dishonest answer or opinion |
| lethargic | physically slow and mentally dull as a result of tiredness, disease, or drugs |
| indolent | lethargic and not showing any interest or making any effort |
| caustic | very sarcastic and intended to mock, offend, or belittle somebody |
| incorrigible | impossible or very difficult to control or keep in order |
| animosity | a feeling or spirit of hostility and resentment |
| garish | crudely showy; brassy, brash |