1. to feel down, to feel sad, to be depressed, to be in low spirits

intransitive verb Godan verb with 'mu' ending

2. to be in a slump (business, economy, etc.), to be in an unfavourable condition

Godan verb with 'mu' ending intransitive verb

3. to fall into (e.g. a hole)

intransitive verb Godan verb with 'mu' ending