severe, stern, austere, ascetic mean given to or marked by strict discipline and firm restraint. severe implies standards enforced without indulgence or laxity and may suggest harshness.
Severe implies adherence to rigorous standards or high principles and often suggests harshness: "Praise or blame has but a momentary effect on the man whose love of beauty in the abstract makes him a severe critic on his own works" (John Keats).
simple, plain, or austere. causing discomfort or distress by extreme character or conditions, as weather, cold, or heat; unpleasantly violent, as rain or wind, or a blow or shock. difficult to endure, perform, fulfill, etc.: a severe test of his powers. rigidly exact, accurate, or methodical: severe standards.
Serious or earnest in feeling, manner, or appearance; without levity; sedate; grave; austere; not light, lively, or cheerful. Very strict in judgment, discipline, or ac tion; not mild or indulgent; rigorous; harsh; rigid; merciless: as, severe criticism; severe punishment.
Some common synonyms of severe are ascetic, austere, and stern. While all these words mean "given to or marked by strict discipline and firm restraint," severe implies standards enforced without indulgence or laxity and may suggest harshness.