1. (a.) Of or pertaining to a mode or mood; consisting in mode or form only; relating to form; having the form without the essence or reality.

2. (a.) Indicating, or pertaining to, some mode of conceiving existence, or of expressing thought.

a fortiori a posteriori a priori acceptable accidental adventitious aleatory analytic at issue casual categorical circumstantial conditioned condonable contingent deductive defensible dependent depending dialectic discursive enthymematic epagogic excusable fixed formal fortuitous given hypothetical iffy in question in suspense in the balance incidental inductive inessential inferential limited maieutic modal modified nonessential obscure occasional open pendent pending problematic provisional provisory qualified questionable relative reliant restricted soritical specificative specified stated stipulated stipulatory suspenseful syllogistic synthetic tenable tentative tolerable uncertain uncounted undecided undetermined unessential unestablished unfixed unsettled untold up for grabs vindicable warrantable