yán​sù HSK5

solemn

严肃 (嚴肅) yán​sù
solemn adjective
grave or serious in tone or atmosphere

The atmosphere in the meeting hall was very solemn.

strictly enforce adjective
to strictly maintain or enforce rules, laws, or discipline

Violations of school rules must be dealt with seriously.

Frequency

Movie subtitles
21.3 per million appears in 9% of films
Written text
29.1 per million

Details

HSK 2.0
Level 5
HSK 3.0
Level 5

Sources

Definitions
CC-CEDICT