frantic

Insane, mentally unstable.

Master have mercy on my sonne, for he is franticke: and ys sore vexed.

If with myself I hold intelligence, Or have acquaintance with mine own desires; If that I do not dream, or be not frantic— As I do trust I am not—then, dear uncle, Never so much as in a thought unborn Did I offend your Highness.

In a state of panic, worry, frenzy, or rush.

They returned the missing child to his frantic mother.

Sir George bore the annoyances of the night as a very vain man does totally unaccustomed to mortification. He was frantic with passion; he longed to kill somebody, but he did not know who.

Extremely energetic.

frantic music

At the end of a frantic first 45 minutes, there was still time for Charlie Adam to strike the bar from 20 yards before referee Atkinson departed to a deafening chorus of jeering from Everton's fans.

A person who is insane or mentally unstable, madman.

1595, George Peele, The Old Wives’ Tale, The Malone Society Reprints, 1908, lines 3-5, How nowe fellowe Franticke, what all a mort? Doth this sadnes become thy madnes?

[…] who but senseless Franticks would have thoughts so poor? My Reason forsakes the government of this weak Frame, and I am fall’n into disorder […]