What is Unrigid?

Unrigid definition and meaning on Dictionary terms:
stiff or unyielding; not pliant or flexible; hard: a rigid strip of metal.
firmly fixed or set.
inflexible, strict, or severe: a rigid disciplinarian; rigid rules of social behavior.
exacting; thorough; rigorous: a rigid examination.
so as to meet precise standards; stringent: lenses ground to rigid specifications.
Mechanics. of, relating to, or noting a body in which the distance between any pair of points remains fixed under all forces; having infinite values for its shear modulus, bulk modulus, and Young’s modulus.

Aeronautics. (of an airship or dirigible) having a form maintained by a stiff, unyielding structure contained within the envelope. pertaining to a helicopter rotor that is held fixedly at its root.


reference: https://www.dictionary.com/browse/unrigid