postpositional
adjective/ˌpəʊstpəˈzɪʃənl/
/ˌpəʊstpəˈzɪʃənl/
(grammar)- (of a word or part of a word) in a position after the word it relates to, for example ‘-ish’ in ‘greenish’
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postpositional
Definition of postpositional adjective from the Oxford Advanced Learner's Dictionary