wú​xīn

unintentionally

无心 (無心) wú​xīn
unintentionally verb
without intent; accidentally

I didn't mean to hurt you; please forgive me.

disinclined verb
not in the mood to; lacking the desire or interest to do something

He has no heart for studying right now; he just wants to sleep.

Frequency

Movie subtitles
2.30 per million appears in 1% of films
Written text
6.24 per million

Sources

Definitions
CC-CEDICT