- not sane; not of sound mind; mentally deranged.
- of, relating to, or characteristic of a person who is mentally deranged: insane actions; an insane asylum.
- utterly senseless: an insane plan.
Origin of insane
SynonymsSee more synonyms for on Thesaurus.com
Related Wordsstupidly, wildly, ferociously, crazily, fiercely, irrationally, violently, furiously, idiotically
Examples from the Web for insanely
Of how incredibly petty the offense can be and how insanely disproportionate the retaliation can be.Of Gamers, Gates, and Disco Demolition: The Roots of Reactionary Rage
October 16, 2014
The stewed cabbage is insanely tender, vegetable-sweet, and more luxurious than cabbage has a right to be.The Heart and Soul (Food) of Orlando
Jane & Michael Stern
June 8, 2014
First, we tend to have an insanely un-nuanced public debate about abortion even though it is an incredibly nuanced issue.Wendy Davis’s 20-Week Abortion Ban Compromise
February 13, 2014
Indeed, it was as if investors collectively woke up and realized they had been giving the company an insanely rich valuation.Tesla Wins Even When It’s Losing
November 11, 2013
Sure, Tesla investors have pushed the stock up to levels that are insanely high and perhaps unsustainable.Tesla’s Rise Forces Other Automakers to Up Their Electric Car Game
September 25, 2013
No one knew whether we'd quarreled or not, or how insanely jealous I could be.The Man the Martians Made
Frank Belknap Long
He raised his hand to his throat—and it tore at the flesh, insanely.
I kept thinking, insanely, that the meteor was a perfect conflict touch.Question of Comfort
Now this terminology is insanely wrong, even if the Bills are right.A Miscellany of Men
G. K. Chesterton
I was madly, insanely jealous, and I forbade my wife to meet him.The New Tenant
E. Phillips Oppenheim
- mentally deranged; crazy; of unsound mind
- (as collective noun; preceded by the)the insane
- characteristic of a person of unsound mindan insane stare
- irresponsible; very foolish; stupid
Word Origin and History for insanely
1550s, from Latin insanus "mad, insane; outrageous, excessive, extravagant," from in- "not" (see in- (1)) + sanus "well, healthy, sane" (see sane). Originally only of persons; of actions, from 1842. Cf. lunatic; and Italian pazzo "insane," originally a euphemism, from Latin patiens "suffering." German verrückt, literally past participle of verrücken "to displace," "applied to the brain as to a clock that is 'out of order' " [Buck]. The noun meaning "insane person" is attested from 1786.
- Of, exhibiting, or afflicted with insanity.