1. extremely evil or cruel; expressive of cruelty or befitting hell

- something demonic in him--something that could be cruel

Similar word(s): evil, diabolic, diabolical, fiendish, hellish, infernal, satanic, unholy

Sentences with demonic as an adjective:

- Convinced that his uncle was a warlock, he rifled through his attic, looking for demonic artifacts.

- Once he had grasped the controls, he unleashed a demonic laugh that made his hostages shudder.