- (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.
- rigid designator,
- rigid frame,
- rigid motion,
Origin of rigid
Examples from the Web for rigidness
Still she maintained a rigidness of feature, and an intrepidity of soul that excited both sorrow and admiration.
It is true that the rigidness of her own home had not prevented her from making a hasty and unsuitable marriage.A Book of Sibyls|Anne Thackeray (Mrs. Richmond Ritchie)
He did not despise comfort or decoration, pretend to a pose of rigidness; he simply hadn't the time for it himself.When It Was Dark|Guy Thorne
He smiled now as he thought of the rigidness of his boyish theology.The Trumpeter Swan|Temple Bailey
This rigidness of some men killed in battle I have often seen.Hugh Wynne, Free Quaker|S. Weir Mitchell
Word Origin for rigid
early 15c., from Latin rigidus "hard, stiff, rough, severe," from rigere "be stiff," from PIE *reig- "stretch (tight), bind tightly, make fast" (cf. Old Irish riag "torture," Middle High German ric "band, string"). Related: Rigidly.