Synonyms of least
PHRASE:▷ at least
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minimalSomething that is minimal is very small in quantity, value, or degree.
• effective defence with minimal expenditure
minimumYou use minimum to describe an amount which is the smallest that is possible, allowed, or required.
• He was only five feet nine, the minimum height for a policeman.
Thesaurus for least from the Collins English Thesaurus
of very little importance or rank