SENTENTIOUSLY
pithily, sententiously
(adverb) in a pithy sententious manner; “she expressed herself pithily”
Source: WordNet® 3.1
Etymology
Adverb
sententiously (comparative more sententiously, superlative most sententiously)
In a sententious manner, concisely, pithily.
Source: Wiktionary
SENTENTIOUS
Sen*ten"tious, a.Etym: [L. sentenciosus: cf. F. sentencieux.]
1. Abounding with sentences, axioms, and maxims; full of meaning;
terse and energetic in expression; pithy; as, a sententious style or
discourse; sententious truth.
How he apes his sire, Ambitiously sententious! Addison.
2. Comprising or representing sentences; sentential. [Obs.]
"Sententious marks." Grew. --- Sen*ten"tious*ly, adv.
– Sen*ten"tious*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition