unoriginality (n.)

• aridity
• aridness
• banality
• barrenness
• cliche
• commonness
• commonplaceness
• dryness
• dullness
• infertility
• mustiness
• prosaicness
• prosiness
• squareness
• staidness
• staleness
• stolidity
• stuffiness
• triteness
• uncreativeness