insanely
adv. degree B2 Upper Intermediate UK //ɪnsˈeɪnli// in·sane·ly
adv. to an extreme degree. You use this when you want to say something is very, very impressive, difficult, or good.
adv. to an extreme or excessive degree; used as an intensifier to modify adjectives or other adverbs. Informal in register; typically replaces 'extremely' or 'very' in casual speech.
The new video game is insanely popular.
The traffic was insanely busy this morning, so I arrived thirty minutes late for the meeting.
While the technology is insanely complex to develop, the final user interface is remarkably simple and intuitive for the average consumer.
Usage
Degree adverb — typically placed immediately before the adjective or adverb it modifies.