The term 'Rude Ones' can be described by two crossword solutions, 'CHURLS' (6 letters) and 'CADS' (4 letters). CHURLS are people who are rude, ill-mannered, and unrefined. The word is derived from the Old English term 'ceorl, ' which means a peasant or commoner. CADS, on the other hand, are people who are rude and immoral. The term is derived from the Latin word 'cadere, ' which means to fall or sink. Both terms refer to people who lack manners and respect for others.