abounding in pithy aphorisms or maxims

a sententious book.

given to excessive moralizing; self-righteous.

given to or using pithy sayings or maxims

a sententious poet.

of the nature of a maxim; pithy.

adjective

abounding , aphoristic , brief , concise , epigrammatic , laconic , meaningful , moralistic , pithy , pompous , pretentious , short , terse