What is the adjective form for the noun accismus? accismatic?

I’ve been looking for a word in English that expresses the following meaning:
The state of wanting something but feigning disinterest because you want the other party to insist, ask more forcefully/affectionately, etc.

So far, the best word I’ve found is accismus. Now I’m wondering if it also has an adjective I can use. Unfortunately, dictionaries haven’t been of much help. If there is no such word, do you think accismatic can be a welcome addition to English vocabulary?