Synonyms for Strict (same or very similar meaning)
WordNet sense 1 ((of rules) stringently enforced):
hard-and-fast
WordNet sense 2 (not liable to or capable of change):
invariable
WordNet sense 3 (incapable of compromise or flexibility):
rigid
WordNet sense 4 (unwilling to tolerate difference of opinion):
intolerant
WordNet sense 5 (unsparing and uncompromising in discipline or judgment):
severe
WordNet sense 6 (morally rigorous and strict):
blue, puritanical
WordNet sense 7 (of a stern or strict bearing or demeanor; forbidding in aspect):
stern, austere
WordNet sense 8 (characterized by strictness, severity, or restraint):
nonindulgent
WordNet sense 9 (rigidly accurate; allowing no deviation from a standard):
rigorous
WordNet sense 10 (marked by strict and particular and complete accordance with fact):
exact
WordNet sense 11 (severe and unremitting in making demands):
exacting
From the ODE community, based on WordNet
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