# insanely

/ɪnsˈeɪnli/ (UK) · CEFR B2 · Adverb

Source: https://englishreference.com/word/insanely
Updated: 2026-05-06

## Definition

to an extreme degree. You use this when you want to say something is very, very impressive, difficult, or good.

For teachers: 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.

## Examples

- 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 notes

- Degree adverb — typically placed immediately before the adjective or adverb it modifies.

---

From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.