This adjective is used appositively.    From Wordnet, Princeton University. 

The Frenchman made a remark to his wife that fitted in appositively enough.    From Wordnik.com.  [At Bertram's Hotel]

Was I dreaming? or had I been speaking aloud, really putting the questions he answered so quickly and appositively?.    From Wordnik.com.  [Mr. Isaacs] Reference

Under the adage "you break it, you've bought it," if he derails this bill, he will for the rest of his political lifetime be appositively identified as "the senator who killed health-care reform.".    From Wordnik.com.  [ScrippsNews] Reference