rigid

[rij-id]
|

adjective


Origin of rigid

1530–40; < Latin rigidus, equivalent to rig(ēre) to be stiff, stiffen + -idus -id4
Related formsri·gid·i·ty, rig·id·ness, nounrig·id·ly, adverbo·ver·rig·id, adjectiveo·ver·rig·id·ly, adverbo·ver·rig·id·ness, nouno·ver·ri·gid·i·ty, nounsub·rig·id, adjectivesub·rig·id·ly, adverbsub·rig·id·ness, nounsub·ri·gid·i·ty, nounun·rig·id, adjectiveun·rig·id·ly, adverbun·rig·id·ness, noun

Synonyms for rigid

1. unbending, firm, inflexible. 2. immovable, static. 3. austere, stern, unyielding. See strict. 4, 5. demanding.

Antonyms for rigid

1. elastic. 3. lax.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for unrigid

rigid

adjective

not bending; physically inflexible or stiffa rigid piece of plastic
unbending; rigorously strict; severerigid rules

adverb

completely or excessivelythe lecture bored him rigid
Derived Formsrigidly, adverbrigidity or rigidness, noun

Word Origin for rigid

C16: from Latin rigidus, from rigēre to be stiff
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unrigid

rigid

adj.

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.

Online Etymology Dictionary, © 2010 Douglas Harper