conjectural (adj.)
- abstract
- academic
- arguable
- confutable
- contestable
- controversial
- controvertible
- debatable
- deniable
- disputable
- doubtable
- doubtful
- dubious
- dubitable
- hypothetic
- hypothetical
- ideal
- iffy
- impractical
- mistakable
- moot
- notional
- problematic
- putative
- questionable
- refutable
- speculative
- suppositional
- supposititious
- suspect
- suspicious
- theoretical
