Rigid

rigid
    adj 1: incapable of or resistant to bending; "a rigid strip of
           metal"; "a table made of rigid plastic"; "a palace
           guardsman stiff as a poker"; "stiff hair"; "a stiff neck"
           [syn: {rigid}, {stiff}]
    2: incapable of compromise or flexibility [syn: {rigid},
       {strict}]
    3: incapable of adapting or changing to meet circumstances; "a
       rigid disciplinarian"; "an inflexible law"; "an unbending
       will to dominate" [syn: {inflexible}, {rigid}, {unbending}]
    4: designating an airship or dirigible having a form maintained
       by a stiff unyielding frame or structure [ant: {nonrigid}]
    5: fixed and unmoving; "with eyes set in a fixed glassy stare";
       "his bearded face already has a set hollow look"- Connor
       Cruise O'Brien; "a face rigid with pain" [syn: {fixed},
       {set}, {rigid}]
    

Rigid \Rig"id\, a. [L. rigidus, fr. rigere to be stiff or numb:
   cf. F. rigide. Cf. {Rigor}. ]
   1. Firm; stiff; unyielding; not pliant; not flexible.
      [1913 Webster]

            Upright beams innumerable
            Of rigid spears.                      --Milton.
      [1913 Webster]

   2. Hence, not lax or indulgent; severe; inflexible; strict;
      as, a rigid father or master; rigid discipline; rigid
      criticism; a rigid sentence.
      [1913 Webster]

            The more rigid order of principles in religion and
            government.                           --Hawthorne.
      [1913 Webster]

   Syn: Stiff; unpliant; inflexible; unyielding; strict; exact;
        severe; austere; stern; rigorous; unmitigated.
        [1913 Webster]
    

204 Moby Thesaurus words for "rigid":
      abiding, accurate, adamant, adamantine, at a standstill, attentive,
      austere, buckram, careful, cast-iron, changeless, close,
      conscientious, constant, continuing, correct, critical, delicate,
      demanding, detailed, determined, direct, dogged, dour, draconian,
      durable, enduring, even, exact, exacting, exigent, express,
      exquisite, faithful, fine, finical, finicking, finicky, firm,
      firm as Gibraltar, fixed, flinty, frozen, fundamentalist, fussy,
      grim, hard, hard and fast, hard-core, hard-line, harsh, headstrong,
      hidebound, immobile, immotile, immotive, immovable, immutable,
      implacable, impliable, in buckram, inelastic, inerrable, inerrant,
      inexorable, infallible, inflexible, infrangible, intact,
      intransigent, inviolate, iron, ironbound, ironclad, ironhanded,
      irreconcilable, irremovable, lasting, literal, made of iron,
      mathematical, meticulous, micrometrically precise, microscopic,
      minute, mulish, muscle-bound, narrow, nice, obdurate, obstinate,
      orthodox, painstaking, particular, pat, permanent, perpetual,
      persevering, persistent, pigheaded, pinpoint, pokerlike, precise,
      precisianistic, precisionistic, prim, procrustean, punctilious,
      punctual, purist, puristic, puritan, puritanic, quiescent,
      ramrodlike, refined, relentless, religious, religiously exact,
      remaining, renitent, resolute, resolved, rigorist, rigoristic,
      rigorous, rock-ribbed, rockbound, rodlike, scientific,
      scientifically exact, scrupulous, scrutinizing, set, severe,
      single-minded, solid, sound, square, stable, standpat, starch,
      starched, starchy, static, stationary, staunch, staying, steadfast,
      steely, stern, stiff, stiff as buckram, stilted, stout,
      straightlaced, strait-laced, straitlaced, strict, stringent,
      strong, stubborn, sturdy, subtle, sustained, taut, tenacious,
      tense, thorough, tight, torpid, tough, unadaptable, unaffected,
      unalterable, unaltered, unbending, unbreakable, unchangeable,
      unchanged, unchanging, unchecked, uncompliant, uncompromising,
      undestroyed, undeviating, unerring, unfading, unfailing,
      unflexible, ungiving, unmovable, unmoved, unmoving, unqualified,
      unrelaxed, unrelenting, unshifting, unswerving, unvaried,
      unvarying, unwavering, unyielding, virgate