semi-formal
1. [ adjective ] moderately formal; requiring a dinner jacket
Synonyms: semiformal black-tie
Examples:

"he wore semiformal attire" "a black-tie dinner"

Related terms: formal
2. [ adjective ] moderately formal; requiring a dinner jacket
Synonyms: black-tie semiformal
Examples:

"he wore semiformal attire" "a black-tie dinner"

Related terms: formal
Similar spelling:   semiformal