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

Oiselle Highline Hoodie and Oiselle Lux Mock Neck These two midlayers are constructed out of Oiselle’s insanely buttery soft Lux material (87% polyester/11% spandex) that feels amazing next-to-skin. —Lisa Jhung, Outside, 21 Jan. 2026

The good news is that, at least in season 1, Heated Rivalry had an insanely short shooting window, only about 36 days. —Paul Tassi, Forbes.com, 20 Jan. 2026

These filter particles are insanely small. —New Atlas, 16 Jan. 2026

Younger workers are also among the first groups to fully embrace that AI advances insanely fast. —Kriti Sharma, Fortune, 15 Jan. 2026

Word History

First Known Use

1683, in the meaning defined at sense 1

Rhymes for insanely

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