Costume and Underdress
Opposite meaning words
Costume
Costume verb - To outfit with clothes and especially fine or special clothes.
Underdress is an antonym for costume.
Underdress
Underdress verb - Dress informally and casually.
Usage example: On Fridays, employees can underdress
Costume is an antonym for underdress.
Cite this Source
Underdress and Costume. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/costume/underdress
Costume & Underdress. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/costume/underdress>.
Underdress or Costume. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/costume/underdress.
Google Ngram Viewer shows how "costume" and "underdress" have occurred on timeline