Boisterous is a word used to describe someone spirited, loud, and slightly out of control — like someone with a spring in their step and a song in their heart singing to strangers on the street.

Pronunciation: / sɝ'veləns/
English description: noisy and lacking in restraint or discipline
Synonyms: rambunctious
Chinese Translation: 喧闹的(xuan1 nao4 de)
Spanish Translation: bullicioso
ORIGIN: Boisterous means "loud, clamorous, and unrestrained." Think of children on a playground or a popular restaurant or a litter of puppies as boisterous. This word, which comes from Middle English, can also refer to very intense storms. You could call a hurricane boisterous, but you will most likely hear this word used to describe people.

EXAMPLE SENTENCE:

Several small cameras appear as I am propelled to the centre of their smiling, boisterous group.
But until now, the band’s boisterous momentum always held grim thoughts at bay.

*New word description, story and part of "EXAMPLE SENTENCE" are cited in Vocabulary.com