SMART ALEC is a term used to describe someone who is overly confident in their knowledge and intelligence. WISENHEIMER is an 11 letter synonym for SMART ALEC, meaning a person who is wise beyond their years. COCKY is a 5 letter synonym for SMART ALEC, meaning someone who is overly confident and arrogant. KNOWALL is a 7 letter synonym for SMART ALEC, meaning someone who claims to know everything. WISEGUY is a 7 letter synonym for SMART ALEC, meaning someone who is wise and clever. WISEACRE is an 8 letter synonym for SMART ALEC, meaning someone who is wise but also annoying. KNOWITALL is a 9 letter synonym for SMART ALEC, meaning someone who thinks they know everything. SMARTALEC is a 9 letter synonym for SMART ALEC, meaning someone who is clever and knows it.