List of strict synonyms and strict related words.
Sabbatarian, Spartan, Spartanic, absolute, absolutist, absolutistic, accurate, arbitrary, aristocratic, arrogant, aspersion, astringent, attentive, austere, authoritarian, authoritative, autocratic, bigoted, bossy, careful, censorious, choicy, choosy, circumscription, close, cold-blooded, complete, compulsive, confining, conscientious, constant, constrictive, correct, cramp, creedbound, critical, defined, delicate, demanding, despotic, detailed, dictatorial, direct, discriminating, discriminative, dogmatic, domineering, dour, draconian, evangelical, even, exact, exacting, exigent, express, exquisite, faithful, fastidious, feudal, fine, finical, finicking, finicky, firm, forbidding, fundamentalist, fussy, grim, grinding, hard, hard-boiled, harsh, hidebound, high-handed, hyperorthodox, imperative, imperial, imperious, inerrable, inerrant, infallible, inflexible, ironhanded, just, limitation, literalist, literalistic, lordly, magisterial, magistral, masterful, mathematical, meticulous, micrometrically precise, microscopic, minute, monocratic, narrow, nice, obloquy, oppressive, overbearing, overconscientious, overruling, overscrupulous, particular, peremptory, perfectionistic, picky, pinpoint, pitiless, precise, precisianist, precisianistic, precisionistic, priggish, prudish, punctilious, punctual, purist, puristic, puritanic, puritanical, refined, reflection, religious, religiously exact, repressive, right, rigid, rigorist, rigorous, rugged, ruthless, scientific, scientifically exact, scrupulous, scrutinizing, selective, sensitive, severe, slam, slur, square, staunch, stern, stint, straitlaced, stricture, stringent, subtle, suppressive, tender-conscienced, thorough, tough, tyrannical, tyrannous, uncompromising, undeviating, undistorted, unerring, unsparing, unsympathetic, veracious, veridical