موثر (صفت)
operational, valid, drastic, effective, live, operative, striking, impressive, affective, efficient, efficacious, effectual, sensational, pivotal, forcible, weighty, pithy, forceful, fruity, operant
اجباری (صفت)
binding, compulsory, compulsive, mandatory, coercive, forcible, de rigueur, obliging
قوی (صفت)
mighty, hard, solid, valid, drastic, keen, strong, fierce, heavy, formidable, stark, bouncing, brawny, stalwart, boisterous, forcible, powerful, potent, intense, violent, buxom, vigorous, hefty, stocky, forceful, lusty, high-powered, high-pressure, irresistible, stoutish, towering, two-handed, walloping
شدید (صفت)
hard, grievous, strenuous, drastic, keen, tough, exquisite, slashing, sopping, chronic, high-wrought, severe, rugged, stalwart, boisterous, forcible, intense, violent, intensive, vigorous, diametric, diametrical, inclement, incontrollable, rigorous, sthenic
قهری (صفت)
natural, forcible