unrigorous From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsadjectiveNot rigorous. Related wordsSynonymsnonrigorousunrigidunroughunstrenuousunstrictunstringentunthoroughunvigorousnonroughunrobustnonruggedunroughenedunmethodicalunrubricalunexactingnonmethodical References Wiktionary — unrigorous Wikipedia — unrigorous