colloquial
- 1Typical of the familiar language of everyday conversation rather than of formal speech or writing.
The novel's dialogue is deliberately colloquial, full of slang and half-finished sentences.
The new translation is more colloquial than the old one, so the characters finally sound like real teenagers.
Similarinformal, conversational, casual, everyday, vernacular
Note
To a linguist the word names a register, not a fault: the language of relaxed conversation, which may be out of place in a formal letter without being wrong.
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Origin
Latin colloquium ("conference, conversation"), from con- ("together") and loquor ("to speak"), gave the earlier English word colloquy ("a conversation"). Adding -al to it produced colloquial, recorded from 1751.