The crossword solutions for the term CONSTRAINT, FORCE are DURESS, which is a six-letter word. DURESS is defined as the use of physical or psychological force to compel someone to do something against their will. It is often used in legal contexts to refer to threats or coercion that invalidates the consent of a person to a transaction or other acts. DURESS can also refer to a situation in which a person is forced to act due to an overwhelming amount of pressure.