Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
waspish is an adjective meaning "very irritable". It carries one recorded sense.
very irritable
“bristly exchanges between the White House and the press”
“he became prickly and spiteful”
“witty and waspish about his colleagues”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for waspish come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.