earnest
earnest adjective uk/ˈɜːnɪst/ usvery serious and sincere
серьезный
an earnest young man an earnest effort in earnest
If something begins to happen in earnest , it really starts to happen in a serious way.
всерьез, по-настоящему
The research will begin in earnest early next year. be in earnest
to be very serious about something and mean what you are saying
говорить совершенно серьезно
earnest ly adverb
серьезно
earnest ness noun [ U ]
серьезность