Related Clues:

• Formal
• Requiring fancy duds
• Fancy, as clothes
• Definitely not come-as-you-are
• Like garb for a gala
• Like prom gowns
• Requiring a tie, e.g.
• Smart, in a way
• Like evening gowns
• Formal, sartorially
• Formally attired
• Black-tie
• Like tuxedos
• Semiformal
• Appropriate for a formal dinner