► 名詞禁物 [きんもつ] [liter]
meaning: prohibit rank: 3☆
慢心は禁物 ⇨ Complacency is prohibited. Never be complacent
(☛ Usually used for life lessons)More examples:- 過信は禁物 ⇨ You should never be too sure of anything
- 結婚に焦りは禁物 ⇨ You can’t hurry trying to get married
- 油断は禁物だ ⇨ Never let your guard down