adjective. moderately formal; requiring a dinner jacket.
- formal (English)
- formel (Middle English (1100-1500))
- semi- (English)
- semi- (Latin)
Example sentences of the word semiformal
For men, a suit and tie in a dark color such as charcoal, navy or black makes up your basic semiformal wear.
2. Verb, past participle
The South has semiformal, debated physical boundaries, but it is defined by a specific set of cultural attributes, including a regional dialect and cuisine.