Four words have been given, out of which three are alike in some manner and one is different. Select the odd one.

Intact : Unflawed Bright : Luminous Pure : Perfect Entire : Partial

Entire : Partial

Intact and Unflawed are synonyms (not damaged and perfect are meanings) Bright and Luminous  are synonyms  Pure and Perfect are synonyms  Entire and Partial are antonyms of each other