sententious

adjectives

abounding in or given to pompous or aphoristic moralizing
"too often the significant episode deteriorates into sententious conversation"- Kathleen Barnes
sententious
is similar to
making claim to or creating an appearance of (often undeserved) importance or distinction
"a pretentious country house"; "a pretentious fraud"; "a pretentious scholarly edition"
pretentious
concise and full of meaning
"welcomed her pithy comments"; "the peculiarly sardonic and sententious style in which Don Luis composed his epigrams"- Hervey Allen
pithy, sententious