"Illatease" is a rarely used word in the English language, and its spelling can be confusing. The phonetic transcription of this word is /ɪl.ə.tiːz/. The first syllable is pronounced "ihl," and the second syllable is pronounced "uh." The final syllable is pronounced "teez." The word itself means to irritate or annoy, but its usage is limited. Due to its infrequent use, the spelling and pronunciation of "illatease" may be unfamiliar to many.