Flimsy rationale

Antonyms for "flimsy rationale" (19 found)

Adjective(18 words)
authentic reasonclear evidencecoherentdurablegenuine justificationrobustsincere explanationsolidsolid justificationsoundsound rationalesound reasoningstrongstrong basissturdyvalid argumentwell foundedwell supported
Noun(1 words)
most solid

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