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Meaning of mustn't grumble | Babel Free

Phrase CEFR B2

Definitions

Not bad; implying that life is not bad and one should not complain about it.

UK, humorous

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

muta- my back teeth are floating my blood type is ... my body is ready my body, my choice my car has broken down