Related Clues:

• Conforming to accepted rules or customs
• Conforming to standards of correctness
• Ceremonious or prescribed
• Conforming to accepted rules, as of dress
• Cermonial, solemn
• Ceremonial, solemn
• Conforming to accepted customs, say dress
• Ceremonious or official
• Conforming to accepted customs
• Stately or official
• Not a casual pound for 20 down
• Not a casual quid for Mother
• It's not so casual for Mother to get to the half-century
• No casual pound for a parent
• Perhaps make a half-century in no casual way