Col*lo"qui*al (?), a. [See Colloqui.]
Pertaining to, or used in, conversation, esp. common and familiar conversation; conversational; hence, unstudied; informal; as, colloquial intercourse; colloquial phrases; a colloquial style.
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Col*lo"qui*al*ly, adv.
His [Johnson's] colloquial talents were, indeed, of the highest order.
Macaulay.
© Webster 1913.