No laughing matter
Meaning: If a subject is no laughing matter, it is serious and not something that people should joke about.
Example: Be serious. This is no laughing matter. This disease is no laughing matter. It's quite deadly if not treated immediately.
Π‘Π΅ΡΠΈΠ°Π»Ρ ΠΈ ΡΠΈΠ»ΡΠΌΡ Π½Π° Π°Π½Π³Π»ΠΈΠΉΡΠΊΠΎΠΌ Ρ ΡΡΠ±ΡΠΈΡΡΠ°ΠΌΠΈ. +1 ΠΠ΅ΡΡΡ Π² ΠΏΠΎΠ΄Π°ΡΠΎΠΊ π
Example: Be serious. This is no laughing matter. This disease is no laughing matter. It's quite deadly if not treated immediately.