diabolical

Definition

Of or concerning the devil: devilish, satanic.

Etymology

From diabolic + -al.

Example Sentences

• "[…] the many diabolical names assigned to boiling springs and to torrents that become dangerously swollen. In California the boiling springs called 'Devil's Tea-kettle' and 'Devil's Mush-pot' repeat the 'Devil's Punch-bowls' of Europe[…]"
• "a diabolical plan"