rigidity
词形变化：
同义词：
unbending | strict | stiff | firm | unyielding | stubborn | tense | inflexible | adamant | taut | hard | fixed | rigorous | unchanging | obstinate | grim | provincial | wooden | bourgeois | blue | exacting | inexpiable | resistant | mulish | fussy | iron | stony | ornery | tight | uncompromising | set | solid | inelastic | severe | harsh | stern |
反义词：
nonrigid | yielding | pliable |
词义辨析：
同义参见:
tension
formality