The term 'less cool' can be described by two crossword solutions: 'dippier' and 'nerdier'. Dippier is an informal adjective used to describe someone who is overly stylish or fashionable in a way that is considered to be in bad taste. Nerdier, on the other hand, is an informal adjective used to describe someone who is excessively studious or intellectual, often to the point of being socially awkward. Both terms are used to describe someone who is not as cool as others.