Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
irritative is an adjective meaning "(used of physical stimuli) serving to stimulate or excite". It carries one recorded sense.
(used of physical stimuli) serving to stimulate or excite
“an irritative agent”
Definitions, synonyms and semantic relations for irritative come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.