Volatile
(adj.) highly unstable; explosive
Synonyms- unpredictable, inconstant, unstable
Antonyms- stable, constant, calm
Vampire Diaries 4x15 Stand By Me - Damon gets Elena to turn off her Humanity
46*
Sentences
The person is very volatile to anyone she comes near, be warned!
I would never want to work near a volatile thing as fire, anything could happen.