Upper-Intermediate (B2)
IPA: /kənˈdʒɛk.tʃər.ə.li/
KK: /kənˈdʒɛk.tʃər.ə.li/
Definition
In a way that is based on guesswork or speculation rather than on solid evidence.
Example
The scientist conjecturally proposed a new theory about the origins of the universe.
Conversation

Have you ever thought about how we might have met conjecturally?

That's an interesting idea! I guess we could imagine all sorts of scenarios.

Right? It’s fun to think about the possibilities, even if they’re just conjecturally based.

Absolutely! Sometimes, imagining those 'what ifs' can be really entertaining.
Synonyms & Antonyms
Synonyms
hypothetically
speculatively
theoretically
Antonyms
certainly
definitively
factually
Root Explanation
Conjecturally → It is formed from "con-" (meaning together) and "jectura" (from Latin "jacere", meaning to throw). The suffix "-ly" indicates a manner. Thus, conjecturally means in a manner that throws together ideas or guesses.
Memory Tip
Think of 'throwing together' ideas ('con-' and 'jectura') to remember that conjecturally means making guesses or assumptions.
Visually Confused Words
nonconjectural
conventually
contextually
contactually
connaturally
conceptually