English Reference

Word

boisterous

Phoneticsbois·ter·ous

US/ˈbɔɪstɝəs/

UK/bˈɔɪstəɹəs/

Definition

adj. loud, energetic, and full of life. You use this to describe people or places that are very lively and noisy in a friendly way.

adj. characterised by loud, energetic, and noisy behaviour. Often describes environments or groups of people that are lively and full of movement.

Examples

“The children were boisterous and full of energy.”

“The boisterous crowd cheered loudly as the team scored the winning goal.”

“The boisterous atmosphere of the festival made it difficult for the local residents to find any peace during the weekend.”

Examples

simple

“The children were boisterous and full of energy.”

contextual

“The boisterous crowd cheered loudly as the team scored the winning goal.”

complex

“The boisterous atmosphere of the festival made it difficult for the local residents to find any peace during the weekend.”

Real-World Examples

“Inside one, a boisterous group of over-65s learn to use WhatsApp.”
The Guardian · 8 Sept 2026
“On a quiet street in western Sydney, Farhana Laffernis races her curious English staffy and boisterous three-year-old daughter in the front door.”
The Guardian · 5 Sept 2026

Etymology

From Middle English boistres, an alteration of Middle English boistous (“crude, unrefined”), of uncertain origin. Likely from Anglo-Norman boystous, bustous (“rough, in a crude state, disabled, paralysed, unable to walk, lame”), Old French boitous (“limping; having a rough, uneven surface”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Level
B2 · Upper Intermediate
Frequency
Occasional
Updated

Scan code

englishreference.com/q/boisterous

English Reference