PIQUANT
engaging, piquant
(adjective) attracting or delighting; “an engaging frankness”; “a piquant face with large appealing eyes”
piquant, salty
(adjective) engagingly stimulating or provocative; “a piquant wit”; “salty language”
piquant, savory, savoury, zesty
(adjective) having an agreeably pungent taste
Source: WordNet® 3.1
Etymology
Adjective
piquant (comparative more piquant, superlative most piquant)
(archaic) Causing hurt feelings; scathing, severe. [from 16th c.]
Stimulating to the senses; engaging; charming. [from 17th c.]
Favorably stimulating to the palate; pleasantly spicy; tangy. [from 17th c.]
Source: Wiktionary
Pi"quant, a. Etym: [F., p.pr. of piquer to prick or sting. See Pike.]
Definition: Stimulating to the taste; giving zest; tart; sharp; pungent;
as, a piquant anecdote. "As piquant to the tongue as salt." Addison.
"Piquant railleries." Gov. of Tongue.
Source: Webster’s Unabridged Dictionary 1913 Edition