strict harsh intolerant stern hard severe austere demanding rigorous stringent unmerciful abstaining inconsiderate mean moderate moderating tempering rigid inflexible uncompromising firm exacting tough set draconian brassbound stiff ironclad tight extreme binding rough forceful confining picky unforgiving uptight unkind authoritarian uncharitable puritanical merciless violent limiting hateful restrictive vindictive unsympathetic thoughtless inattentive malevolent unmindful inhumane forbidding grudging domineering denying hardhearted callous uncompassionate challenging heavy unsparing absolute difficult onerous punctilious testing daunting burdensome backbreaking oppressive abstemious abstinent temperate continent ascetic restrained frugal hostile unfriendly bad disobliging malicious malign unfavorable unfavourable unpleasant cancerous disadvantageous heartless cruel selfish insensitive uncaring cold unfeeling unkindly brutal inhuman