Definition of "gnomic"

a city long famous as the seat of elegiac and gnomic poetry

G. R. Lewes

Old English culture was threaded through with riddles, cryptograms, gnomic verses, charms and riddling modes of speech such as litotes, just as Modern English culture is (if you will forgive me) riddled with jokes and catch-phrases, crosswords and quizzes, irony and sarcasm.

2013, Adam Roberts, The Riddles of The Hobbit‎, Palgrave Macmillan, page 17

In his part gnomic, part mechanic’s style, Mr. Pirsig’s narrator declares that the real world is a seamless continuum of the material and metaphysical.

2017 April 24, Paul Vitello, “Robert M. Pirsig, Author of ‘Zen and the Art of Motorcycle Maintenance,’ Dies at 88”, in The New York Times‎