Rigid
Rigid , adjective
[Latin rigidus, from rigere to be stiff or numb: compare French rigide. Compare Rigor. ]
1.
Firm; stiff; unyielding; not pliant; not flexible.
Upright beams innumerable
Of rigid spears.
2.
Hence, not lax or indulgent; severe; inflexible; strict; as, a rigid father or master; rigid discipline; rigid criticism; a rigid sentence.
The more rigid order of principles in religion and government.