самоде́ятельность

rare #17410

nounfeminineinanimateuncountablenoun in -ь

1.
amateur performance, amateur arts, amateur theatricalsarts
Она́ поёт в шко́льной самоде́ятельности.
She sings in the school amateur group.
Usually in the phrase художественная самодеятельность, of clubs and groups of non-professional performers.
2.
own initiative, independent action, acting on one's own
Никако́й самоде́ятельности, де́лай как ска́зано!
No acting on your own - do as you're told!
Often disapproving: doing something without being told or authorized.

Examples

Она с детства участвовала в самодеятельности.
She had taken part in amateur performances since childhood.
В школе он занимался художественной самодеятельностью.
At school, he took part in amateur artistic activities.
Их концерт — обычная студенческая самодеятельность.
Their concert was just an ordinary student amateur performance.