In*form"al (?), a. [Pref. in- not + formal.]


Not in the regular, usual, or established form; not according to official, conventional, prescribed, or customary forms or rules; irregular; hence, without ceremony; as, an informal writting, proceeding, or visit.


Deranged in mind; out of one's senses.


These poor informal women. Shak.


© Webster 1913.

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