1. Terse and energetic in expression; pithy.
2. Full of or given to using aphorisms, especially in a pompously moralizing manner.
[Middle English, from Old French sententieux, from Latin sententiōsus, full of meaning, from sententia, opinion; see SENTENCE.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.