Catch unaware is a term used to describe a situation in which someone is taken by surprise. The crossword solutions for this term are STARTLE (7 letters), TRAP (4 letters), and sneakupon (9 letters). STARTLE means to surprise or shock someone suddenly, TRAP means to catch someone in a difficult situation, and sneakupon means to approach someone without them noticing. Together, these words can be used to describe the act of catching someone unaware.