/ tʃeɪst; NAmE / adjective
1.
( old-fashioned ) not having sex with anyone; only having sex with the person that you are married to :
to remain chaste
2.
( formal ) not expressing sexual feelings :
a chaste kiss on the cheek
3.
( formal ) simple and plain in style; not decorated :
the cool, chaste interior of the hall
► chaste·ly adverb :
He kissed her chastely on the cheek.
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WORD ORIGIN
Middle English : from Old French , from Latin castus .