on no account | not on any account成語所屬單字accounton no account | not on any accounton no account | not on any account — 慣用語慣用語1. Not for any reason; under no circumstances.1.慣用語釋義絕不Not for any reason; under no circumstances.例句On no account should you open the door to strangers.You must not, on any account, touch that red button.