suppositious

adjective
sup·​po·​si·​tious | \ ˌsə-pə-ˈzi-shəs How to pronounce suppositious (audio) \

Definition of suppositious

First Known Use of suppositious

1604, in the meaning defined above

History and Etymology for suppositious

by contraction

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Time Traveler for suppositious

The first known use of suppositious was in 1604

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not constant or steady

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