The term 'less familiar' can be described by the crossword solutions of 'STRANGER', 'NEWER', and 'odder'. STRANGER is an 8-letter word meaning someone who is not known or not well-known, while NEWER is a 5-letter word meaning something that has recently been made or introduced, and odder is a 5-letter word meaning something that is unusual or strange. Together, these words describe something that is not well-known, recently introduced, and unusual.