The term 'talk aimlessly' can be described by four different crossword solutions: RAMBLE (6 letters), NATTER (6 letters), rattleon (8 letters), and shootthebull (12 letters). RAMBLE means to talk or wander in a confused or aimless way, while NATTER is similar but implies talking for a long time without saying anything of importance. Rattleon is to talk rapidly and at length without making much sense, and shootthebull is an American phrase meaning to talk casually and aimlessly.