suppositious
su
ˌsʌ
sa
ppo
si
ˈzɪ
zi
tious
ʃəs
shēs
British pronunciation
/sˌʌpəzˈɪʃəs/

Definition & Meaning of "suppositious"in English

suppositious
01

based on an assumption or theory without factual support

example
Examples
His argument was weak because it relied on suppositious claims rather than evidence.
The detective dismissed the suppositious theory due to a lack of proof.
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