Definition of rigid

< righty

rigidify >

rig·id    (rjd) KEY 

ADJECTIVE:

1. Not flexible or pliant; stiff.
2. Not moving; fixed.
3. Marked by a lack of flexibility; rigorous and exacting: "We have watered down a rigid training . . . until we now have an educational diet in many of our public high schools that nourishes neither the classes nor the masses" (Agnes Meyer).
4. Scrupulously maintained or performed: rigid discipline. See Synonyms at stiff.

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ETYMOLOGY:
Middle English rigide, from Latin rigidus, from rigre, to be stiff; see reig- in Indo-European roots

OTHER FORMS:
rigid·ly(Adverb), rigid·ness(Noun)