Synonyms and Antonyms for Rigorous

Following is a list of 150 synonym words and phrases that are related to rigorous:

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3 Letter Words

lax

4 Letter Words

hardneatgrimhighfirmcold

5 Letter Words

tightexactcruelharshrigortoughstarkrigidstiffsternsoundheavyclosegraverangesolidflour

6 Letter Words

strictbrutalunkindrigourrobuststrongseverefrugalnarrowproperbitterankaraformalrigorsartful

7 Letter Words

drasticcarefulpreciseorderlyausterearduousprudentthriftyintenseonerousseriouslengthytediousrigoursnuancedempiric

8 Letter Words

resolutestrictlyexactingthoroughdiligentdetailedin-depthpowerfuldelicatecriticalforcefulvigorousaccuratedauntingcriminalfaithfulcoherentironcladstrictergruelingmethodicscrutinysensibleincisivestudious

9 Letter Words

stringentdemandingassiduousintensivedraconianstrenuousextensiverigourousgruellinglaboriousempiricalvigourousstrictestpragmaticpracticaltorturousmercilessexpansivecontinualefficient

10 Letter Words

stringencyscrupulousmeticulousfastidiousburdensomeeconomicalconsistentcompellinginflexiblethoughtfulaggressiveinaccurateconsequentmethodicalsystematiclustrationexhaustiverelentlesscontinuousinnovativeunorthodoxpurposefulanalyticalmeaningful

11 Letter Words

painstakingchallengingdisciplinedrestrictiverigourouslyqualitativeformalisticunflinchingunrelentingcompetitivewideranging

12 Letter Words

intransigenthard-hittingquantitativestandardizedproscriptive

13 Letter Words

conscientiousauthoritativecomprehensivethoroughgoingsophisticateddispassionate

14 Letter Words

uncompromisingexcruciatingly

15 Letter Words

conscientiouslystraightforward

Using this list of similar-meaning words, you can choose the best synonyms to replace rigorous in your sentences.

Additionally, you'll find antonyms included, perfect for when you need the complete opposite meaning of rigorous in your writing.