More Rigid is a term used to describe something that is more rigidly structured or inflexible. The crossword solutions for this term are TIGHTER (7 letters), STRICTER (8 letters) and Starchier (9 letters). TIGHTER implies that something is held together more firmly, while STRICTER suggests that something is more strictly enforced. Starchier implies that something is more stiff and formal. All three words can be used to describe something that is more rigid.