· rigidly accurate; allowing no deviation from a standard; "rigorous application of the law"; "a strict vegetarian"
Synonym(s): rigorous
· (of rules) stringently enforced; "hard-and-fast rules"
Synonym(s): hard-and-fast
· characterized by strictness, severity, or restraint
Synonym(s): nonindulgent
· incapable of compromise or flexibility
Synonym(s): rigid
· severe and unremitting in making demands; "an exacting instructor"; "a stern disciplinarian"; "strict standards"