Added 10 October 2026
suppositious
/ˌsʌpəˈzɪʃəs/ adjective
Latin root: suppositius Wiktionary
adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about suppositious at Wordnik → Where our words come from →
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Based primarily on surmise rather than adequate evidence.
theories about the extinction of dinosaurs are still highly conjectural
Origin
From New Latin suppositius, from Latin suppositīcius.
From Wiktionary, via Kaikki.org (CC BY-SA)