Moistless is a word that describes the lack of moisture or being dry. The spelling of this word can be broken down using IPA phonetic transcription as /mɔɪstlɛs/ with the stress on the second syllable. The initial sound is that of the diphthong /ɔɪ/ followed by the voiceless consonant cluster /st/ and the final syllable ending in the voiceless fricative /s/. Though not commonly used, the word moistless is a valid term in the English language.
The term "moistless" is derived from the combination of the word "moist", which ultimately came from the Latin word "muestus" meaning "drenched", and the suffix "-less", which is added to a word to indicate the absence or lack of something. Hence, "moistless" essentially means without moisture or lacking moisture.