The Collaborative International Dictionary
Aphoristical
Aphoristic \Aph`o*ris"tic\, Aphoristical \Aph`o*ris"tic*al\, a. In the form of, or of the nature of, an aphorism; in the form of short, unconnected sentences; as, an aphoristic style.
The method of the book is aphoristic.
--De Quincey.
Wiktionary
aphoristical
a. (alternative form of aphoristic English)