Definitions

1. adjective

of or relating to the use of inflected forms of a verb to indicate the grammatical relationship of the subject to the action, especially in the formation of reflexive pronouns

“Some linguists argue that many languages exhibit flexive properties.”

2. noun

a system of verb conjugation that employs inflection to indicate the relationship between the subject and the action of the verb

“The flexive system of verb conjugation is a key feature of many indigenous languages.”