insanely

adverb

in·​sane·​ly (ˌ)in-ˈsān-lē 

1

: in an insane manner : in a way that suggests unsoundness or disorder of mind

They sometimes gabbled insanely. One huge man was asking of the sky: "Say, where de plank road? Where de plank road!" It was as if he had lost a child.

—Stephen Crane

Glancing back, he saw all the carnage, death and misery he had caused in his career. The big rat laughed insanely and ran faster: on and on, past scenes of desolation and destruction …

—Brian Jacques

2

: to a very extreme degree

insanely jealous

insanely happy

insanely rich

The plot is insanely intricate.

—Terrence Rafferty

Justin Bieber … took to Instagram to show off the insanely expensive Audemars Piguet diamond watch he purchased for her as a birthday gift …

—Jane Meeker

Examples of insanely in a Sentence

Recent Examples on the Web

Highlights include the raw sampler—mussels blanketed in a thick puree of herbs, scallop crudo bathed in homemade almond milk—and a bouillabaisse accompanied by insanely crunchy cheesy bread for sopping. —Condé Nast, Condé Nast Traveler, 23 May 2026

Thirty years is an insanely long run. —Los Angeles Times, 20 May 2026

And the result is a modern love story that’s sexy, romantic, and insanely wholesome to watch all at the same time. —Anna Rinderspacher, Glamour, 20 May 2026

Saying that Tim Duncan was the best player in the world from 2003-2007 is insanely clouded by hindsight bias. —Austin Perry Outkick, FOXNews.com, 14 May 2026

Word History

First Known Use

1683, in the meaning defined at sense 1

Rhymes for insanely

• humanely
• profanely
• ungainly
• mainly
• plainly
• sanely
• vainly