adjective
an adjective describes or modifies a noun or pronoun, in this case 'undefiled' describes something that is pure and free from impurities
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The ancient temple remained undefiled by the passage of time.
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Her room is always so clean and undefiled, it's impressive.
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I can't believe you kept your shoes undefiled at that muddy festival!
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His reputation as a lawyer remained undefiled despite the scandal.