acrimonious, afflictive, agonizing, astringent, austere, austerus, bearish, brutal, censorious, churlish, coercive, cold, condemnatory, critical, cruel, despotic, difficult, domineering, dour, drastic, durus, exacting, excruciating, exigent, faultfinding, fierce, firm, forbidding, furious, grievous, grim, gruff, hard, hard to endure, harsh, hypercritical, ill-natured, ill-tempered, immovable, implacable, inclement, inexorable, inflexible, insufferable, intense, intractable, ironclad, ironhanded, mordant, nasty, obdurate, oppressive, overbearing, overpowering, painful, peremptory, pitiless, punitive, puritanic, puritanical, raging, relentless, rigid, rigorous, rough, rugged, ruthless, savage, severus, sharp, sour, stark, stern, stiff, stinging, stony, stony-hearted, stormy, strait-laced, strict, stringent, stubborn, tempestuous, tough, trying, tyrannical, unbending, uncompromising, unfeeling, ungentle, ungracious, unjust, unkind, unmerciful, unmitigated, unrelenting, unsparing, unyielding, vicious, vindictive, violent
associated concepts: severe penalties
astringent, bitter (penetrating), brutal, callous, caustic, close (rigorous), critical (faultfinding), crucial, cruel, dictatorial, draconian, drastic, harsh, incisive, inexorable, insufferable, intense, mordacious, onerous, oppressive, pejorative, precise, relentless, rigid, scathing, serious (grave), spartan, strict, trenchant, tyrannous, uncompromising, unmitigated, unrelenting
Burton's Legal Thesaurus. William C. Burton. 2006
adj.Extreme; very bad; strict or harsh.
The Essential Law Dictionary. — Sphinx Publishing, An imprint of Sourcebooks, Inc. Amy Hackney Blackwell. 2008.