1. not level; not flat or even; having an uneven surface or slope

Examples

• The nonlevel ground made it difficult to set up the tent.
• We had to adjust the table legs because the floor was nonlevel.
• The nonlevel surface of the old wooden deck was a tripping hazard.
• The contractor discovered the foundation was nonlevel during the inspection.
• Walking on the nonlevel terrain required careful footing.