-ative /ətɪv $ ətɪv, eɪtɪv/ BrE AmE suffix [in adjectives]
[ Language: Old French ; Origin: -atif , from Latin -ativus ]
liking something or tending to do something or show a particular quality:
talkative (=liking to talk a lot)
argumentative (=enjoying arguments)
imaginative (=showing imagination)