1) Commonplace 2) Dull and boring 3) Dull and tedious 4) Dull in discourse 5) Dull to read 6) Earthbound 7) Far from poetic 8) Lacking imagination 9) Lacking wit 10) Lacking wit or imagination 11) Lackluster 12) Like plain text 13) Like plain writing 14) Not poetic 15) Pedestrian 16) Prosaic 17) Tedious 1) Pedestrian 2) Uninteresting 
prosaic; tedious
• (superl.) Dull and tedious in discourse or writing; prosaic. • (superl.) Of or pertaining to prose; like prose.
Pros'y adjective [ Compar. Prosier ; superl. Prosiest .] 1. Of or pertaining to prose; like prose. 2. Dull and tedious in discourse or writing; prosaic. 
of the nature of or resembling prose. · prosaic; dull, tedious, wearisome, or commonplace.