Example: Under no circumstances should you touch the electric wires.
Definition
"Under no circumstances" is a phrase used to emphasize that something must never be done or allowed, regardless of any situation or condition. It strongly advises against an action, indicating it is completely forbidden or unacceptable in all cases.
The phrase "under no circumstances" originates from combining the preposition 'under,' meaning 'subject to' or 'in the condition of,' with 'no circumstances,' meaning no situations or conditions. It evolved to express an absolute prohibition, emphasizing that in no possible situation should the described action occur.
Learn to use this expression actively
"Under no circumstances" appears in the Vocaplus list "English - General - Idioms and Proverbs - (B2) - set 1", containing 103 commonly used expressions.
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