The term 'not relevant' is used to describe something that is not applicable or pertinent to the current situation. The crossword solutions for this term are 'IRRELEVANT' (10 letters), 'INAPT' (5 letters), 'MOOT' (4 letters) and 'offthesubject' (13 letters). All of these words have similar meanings, with 'IRRELEVANT' being the most commonly used. 'INAPT' means unsuitable or inappropriate, while 'MOOT' means having no practical significance or value. Finally, 'offthesubject' means not related to the topic at hand.