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]