Chunkiness | Definition of Chunkiness by Merriam-Webster.

Is Chunkiness a word?

Short and thick; stocky.

What do you call chunky?

1a : heavy, solid, and thick or bulky a chunky sweater chunky bracelets especially : stocky an athlete with a chunky build. b : plump, chubby. 2 : filled with chunks chunky peanut butter.