Invalid
Invalid adjective - Not using or following good reasoning.
Usage example: an argument which has one untrue premise is invalid
Preposterous and invalid are semantically related. in illogical topic. In some cases you can use "Preposterous" instead an adjective "Invalid".
Preposterous
Preposterous adjective - Showing or marked by a lack of good sense or judgment.
Usage example: a preposterous suggestion to go swimming in this freezing weather
Invalid and preposterous are semantically related. Sometimes you can use "Invalid" instead an adjective "Preposterous".
Mutual synonyms
Related pairs
- inconsistent and invalid
- inconsistent and preposterous
- implausible and invalid
- implausible and preposterous
- irrational and invalid
- irrational and preposterous
- illogical and invalid
- illogical and preposterous
- unconvincing and invalid
- unconvincing and preposterous
- unsound and invalid
- unsound and preposterous
- senseless and invalid
- senseless and preposterous
Cite this Source
Preposterous and Invalid. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/invalid/preposterous
Invalid & Preposterous. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/invalid/preposterous>.
Preposterous or Invalid. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/invalid/preposterous.
Google Ngram Viewer shows how "invalid" and "preposterous" have occurred on timeline