Synonyms and Antonyms of rigorous (rĭgər-əs)

brutal severe precise relentless full taxing ascetic meticulous dogmatic heavy exact austere uncompromising arduous backbreaking demanding difficult effortful exacting exigent formidable laborious rough tough close faithful errorless right true veracious veridical burdensome challenging correct hard harsh inclement onerous oppressive rigid rugged stern stiff strict stringent trying unyielding tight weighty

lenient mild loose lax slapdash easy easy-going

accurate careful usual honest real definite thorough rigourous rigorously systematic robust consistent rigour

rigorous ₉

rigours ₈

guiros ₇ rigors ₇ rigour ₇

giros ₆ guiro ₆ rigor ₆ sorgo ₆ orris ₅

giro ₅ goos ₅ orgs ₅ rigs ₅ rugs ₅ ours ₄ roos ₄ sori ₄ sour ₄

gis ₄ goo ₄ gor ₄ gos ₄ grr ₄ org ₄ rig ₄ rug ₄ sig ₄ ors ₃ our ₃ roo ₃ sir ₃ sou ₃ sri ₃

gi ₃ go ₃ is ₂ oi ₂ or ₂ os ₂ si ₂ so ₂ us ₂