The term 'not budging' can be described by the following crossword solutions: SET (3 letters), FIRM (4 letters), IMMOBILE (8 letters), ADAMANT (7 letters), and SITTINGTIGHT (12 letters). SET means to put in a particular position, FIRM implies being solid and unyielding, IMMOBILE suggests being unable to move, ADAMANT implies being resolute and determined, and SITTINGTIGHT implies staying in one place. All of these words describe the term 'not budging, ' which means to remain in one place and not move.