underdressed

Verb

• dress without sufficient warmth
  • "She was underdressed for the hiking trip and suffered hypothermia"
• dress informally and casually
• simple past and past participle of underdress

Adjective Satellite

• inadequately or too informally clothed

Adj

• Insufficiently dressed, as for cold weather.
• Insufficiently well-dressed, as for a formal event.

Synonyms

dress down, underdress

Antonyms

dress up, overdress