The term 'imperative' is used to describe something that is necessary, URGENT, or required. The crossword solutions for this term include 'IMPORTUNATE' (11 letters), 'BIDDING' (7 letters), 'IMMEDIATE' (9 letters), 'COMPELLING' (10 letters), 'BINDING' (7 letters), 'DEMANDING' (9 letters), 'PREREQUISITE' (12 letters), 'CLAMANT' (7 letters), 'INDISPENSABLE' (13 letters), 'IMPERIAL' (8 letters), 'MAGISTERIAL' (11 letters), 'INSOLENT' (8 letters), 'OBLIGATORY' (10 letters), 'CLAMOROUS' (9 letters), 'COMPULSORY' (10 letters), 'BOSSY' (5 letters), 'MASTERFUL' (9 letters), 'BURNING' (7 letters), 'DIRE' (4 letters), 'HARSH' (5 letters), 'CRYING' (6 letters), 'ACUTE' (5 letters), 'DOMINEERING' (11 letters), 'NEED' (4 letters), 'RULE' (4 letters), 'amust' (5 letters), 'VITAL' (5 letters), 'URGENT' (6 letters), and 'EXIGENT' (7 letters). These words all describe something that is necessary, URGENT, or required in some way, and they are all related to the term 'imperative'.