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

Nitrate film stock, which was used in the industry from the eighteen-nineties to the mid-twentieth century, and which was responsible for many of the most beautiful movies on record, is also insanely flammable. —Anthony Lane, New Yorker, 22 Sep. 2025

And the tickets are insanely expensive. —Joe Nguyen, Denver Post, 21 Sep. 2025

Dressing as a true-blue, off-duty, yet insanely famous, American sportsman. —Guy Martin, Forbes.com, 16 Sep. 2025

As always, bridal remains its own emotional, complex and insanely romantic part of the fashion world. —Lisa Lockwood, Footwear News, 12 Sep. 2025

Word History

First Known Use

1683, in the meaning defined at sense 1

Rhymes for insanely

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