Overly confident is a term used to describe someone who is excessively self-assured and often arrogant. The crossword solutions for this term are SMUG (4 letters), COCKY (5 letters), and BOLDASBRASS (11 letters). SMUG is an adjective used to describe someone who is excessively pleased with themselves, often in an annoying way. COCKY is an adjective used to describe someone who is overly confident and often arrogant. BOLDASBRASS is an idiom used to describe someone who is very confident and unafraid to take risks.