Antonyms of adj inflectional

1 sense of inflectional

Sense 1
inflectional (vs. derivational) -- (characterized by inflections indicating grammatical distinctions; "inflectional morphology is used to indicate number and case and tense and person etc.")

derivational (vs. inflectional) -- (characterized by inflections indicating a semantic relation between a word and its base; "the morphological relation between `sing' and `singer' and `song' is derivational")

Similarity of adj inflectional

1 sense of inflectional

Sense 1
inflectional (vs. derivational) -- (characterized by inflections indicating grammatical distinctions; "inflectional morphology is used to indicate number and case and tense and person etc.")