"Clever boy" is a phrase often used to praise a young male for his intelligence or quick thinking. However, there are many synonyms that can be used to describe such qualities. These might include terms such as bright, intelligent, sharp, astute, perceptive, shrewd, resourceful, quick-witted, and savvy. Each of these words carries a slightly different connotation but all suggest a person who is intellectually adept or has good problem-solving skills. Whether we want to compliment our son, grandson, nephew, or a young friend, there are plenty of other ways to convey the message that they are a "clever boy".