Using as few words as possible; pithy and concise. / Tending to use aphorisms or maxims, especially given to trite moralizing. / (obsolete) Full of meaning.

In a sententious manner, concisely, pithily.

The state or condition of being sententious.

(linguistics, law, philosophy) Relating to a sentence.

In a sentential way.

The state or condition of being sentential.

(semantics)

(logic) propositional logic

plural of sentential logic