uneven

"The carpenter unevened the surface of the wooden table to prepare it for staining. "

"The floor in the old house was quite uneven, so we had to be careful where we stepped. "

"The sidewalk was uneven, making it difficult to walk without tripping. "

"The sidewalk was uneven, making it hard to walk without tripping. "

"The quality of the students' work was uneven; some assignments were excellent, while others were poorly done. "

""Seven is an uneven number." "