Morpheme refers to the smallest unit of meaning in a language. Without morphemes, language communication would be impossible. In linguistics, antonyms are pairs of words that have opposite meanings. So, some of the antonyms for the word morpheme include larger units such as words or phrases. Words, unlike morphemes, can be broken down into smaller units such as morphemes. Other antonyms for the word morpheme include unanalyzed, unsegmented, or inarticulate units of language. These words denote the absence of meaning units, which are the essence of morphemes. Therefore, antonyms for morpheme are useful in describing the presence or absence of meaning units in language.