■ adjective
1》 unable to bend or be forced out of shape.
↘(of a person) stiff and unmoving.
2》 not able to be changed or adapted.
■ noun a truck which is not articulated.
Derivatives
~ify verb ( ~ifies , ~ifying , ~ified ).
~ity noun
~ly adverb
~ness noun
Origin
ME: from L. ~us , from rigere 'be stiff'.