The word "unhealths" is not a commonly used word. It is the verb form of "unhealthy," meaning to make something unhealthy. The spelling of this word can be explained using IPA phonetic transcription as /ʌnˈhɛlθs/. The "un" prefix means not or opposite, the "h" is followed by the short "e" sound, and the "th" sound is pronounced as θ. The final "s" indicates that the word is in the third person singular.