1. (n.) The quality or state of being rigid; want of pliability; the quality of resisting change of form; the amount of resistance with which a body opposes change of form; -- opposed to flexibility, ductility, malleability, and softness.

2. (n.) Stiffness of appearance or manner; want of ease or elegance.

3. (n.) Severity; rigor.

abidingness absoluteness accuracy adamantness attention to fact care for truth changelessness concentration constancy correctness delicacy dourness durability durableness duration endurance exactitude exactness faithfulness faultlessness fidelity fineness firmness firmness of mind fixedness flawlessness flintiness frozenness fundamentalism grimness hard-bittenness hard-nosedness hardening hardness immobility immobilization immovability immovableness immutability implacability impliability inelasticity inertia inexorability inextricability inflexibility intransigeance intransigence intransigency intransigentism invariability invariableness inveteracy irreconcilability irremovability lastingness literalism literality literalness long standing loyalty mathematical precision meticulousness niceness nicety obduracy obdurateness obstinacy orthodoxy perfection permanence permanency perpetualness persistence persistency preciseness precisianism precision purism puritanism quiescence refinement relentlessness renitence renitency right rightness rigidness rigor rigorism rigorousness settledness severity solidity stability standing starchiness stasis staunchness steadfastness steadiness steeliness sternness stiff temper stiffness strictness stubbornness subtlety tautness tenseness tension tensity textualism the letter tightness torpor toughness trueness unalterability unbendingness unchangeability unchangingness uncompromisingness ungivingness unmovability unrelentingness unyieldingness vis inertiae