Wiktionary
a. Not classical.
Usage examples of "unclassical".
Though they do have vague echoes of Alexander the Great, inspection always reveals the prominent ears and unclassical nose.
Charlie assured her, clattering down the bathhouse steps in a very unclassical manner.
But the strict observance of position is in effect the strict avoidance of unclassical collocations of syllables: it is almost wholly negative.
He had supplied her chiefly with Sicilian compositions, both in poetry and melody, and was content to be unclassical, for the sake of the feminine and voluptuous graces of his native dialect.
Sydney and hampered with the unclassical name of Brown, his only possible chance of appreciation in his native village is to wear a sombrero like our friend here, let his hair grow long, and call himself Monsieur Le Brun.
In spite of his French education and classical tastes, his plays are constructed in a very un-French and unclassical manner.