mindmap root((僵硬)) stiff may apply to any degree of this condition: muscles will become ~ if they are not stretched. rigid applies to something so stiff that it can't be bent without breaking: a ~ surfboard. inflexible stresses lack of suppleness or pliability: for adequate support, rock-climbers wear shoes with ~ soles. （supple: 物体柔软身体柔韧皮肤弹性supple object,skin,body） tense suggests a stretching or straining to the point where elasticity or flexibility is lost: ~ nerves. （elastic: 可拉伸而不断） wooden suggests the hard inflexibility and dry rigidity of wood and connotes stiffness and lack of life and often clumsy or heavy deadness: moved in a start ~ manner.