Adverbs for Austere

odiously; unrnitigatedly; unbendingly; unrelentingly; gravely; starkly; sombrely; monastically; harshly; puritanically; severely; rigorously; rigidly; uncompromisingly; inflexibly; unsparingly; arbitrarily; tyrannically; sternly; oddly; unfashionably; haughtily; soberly.