Solutions Stiff as a board has 21 entries with similar clues
- gelHair stiffening agent
- cardEccentric (stiff paper)
- gelshair stiffening substances
- primStiffly formal
- strutWalk stiffly
- starchGive stiffness
- woodenStiff
- starchyStiff
- tautensStiffens
- bristleStiff hair
- starchedStiffened
- rigidityStiffness
- linoleumStiff floor covering
- crinolineStiff fabric in Victorian costume
- unbendingStiff
- hardboardStiff sheets of compressed wood, pulp, etc.
- inflexibleStiff
- bowler-hatHeadgear of stiff felt
- rigor-mortisStiffening of joints and muscles of a corpse
- osteoarthritisDegeneration of joint cartilage, causing pain and stiffness
- panic-strickenScared stiff