adjective, pith·i·er, pith·i·est.
- brief, forceful, and meaningful in expression; full of vigor, substance, or meaning; terse; forcible: a pithy observation.
- of, like, or abounding in pith.
adjective pithier or pithiest
- terse and full of meaning or substance
- of, resembling, or full of pith
adj.early 14c., “strong, vigorous,” from pith (n.) + -y (2). Meaning “full of substance or significance” is from 1520s; literal meaning “full of pith” not attested until 1560s. Related: Pithily; pithiness.