2 adjectives to describe neologism

" Marivaux has been blamed for an affectation, an ingenuity, a delicacy of style, together with a diffuseness, which led him to turn a thought in so many different ways as to weary the reader, a habit of clothing in popular expressions subtle and over-refined ideas, and, finally, a studied and far-fetched neologism.

And with all this, in his hard rugged style, bristling with obsolescent words and unexpected neologisms, flashed perfect originalities, treasures of expression and superbly nomadic lines amputated of rhyme.

2 adjectives to describe  neologism