3. (adj)inflexible, rigid, unbending incapable of adapting or changing to meet circumstances Synonyms: stiff, strict, unbending, set, sturdy, uncompromising, inflexible, fixed, rigid Antonyms: tolerant, flexile, adaptable, flexible, nonrigid, moving
4. (adj)rigid designating an airship or dirigible having a form maintained by a stiff unyielding frame or structure Synonyms: fixed, unbending, inflexible, stiff, set, strict Antonyms: nonrigid, moving, flexible, tolerant, flexile, adaptable
1. rigid That is severe which is devoid of all softness, mildness, tenderness, indulgence or levity, or (in literature and art) devoid of unnecessary ornament, amplification, or embellishment of any kind; a Synonyms: severe, austere, inflexible, rigorous, uncompromising, hard, morose, stern, unmitigated, harsh, relentless, stiff, unrelenting, inexorable, rigid, strict, unyielding Antonyms: affable, easy, gentle, lenient, pliable, sweet, tractable, bland, genial, indulgent, mild, soft, tender, yielding