semiformal

Etymology
From en.

Adjective

 * 1) Somewhat formal.
 * 2)  Of clothing: having a level of formality between that of informal and formal wear.
 * 3)  Of an event: having a semiformal dress code.
 * 1)  Of clothing: having a level of formality between that of informal and formal wear.
 * 2)  Of an event: having a semiformal dress code.
 * 1)  Of an event: having a semiformal dress code.

Noun

 * 1)  A social event in which one is expected to dress in semiformal wear.