Antonyms of noun overgarment

1 sense of overgarment

Sense 1
overgarment, outer garment -- (a garment worn over other garments)
       Antonym of undergarment (Sense 1)
      => undergarment, unmentionable -- (a garment worn under other garments)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun overgarment

1 sense of overgarment

Sense 1
overgarment, outer garment -- (a garment worn over other garments)
       => garment -- (an article of clothing; "garments of the finest silk")