IPA: /nɒnˈsɜː.kjʊ.lər/
KK: /nɑnˈsɜr.kjʊ.lər/
Not having a circular shape; having a different form or outline that is not round.
The design of the table is noncircular, featuring sharp edges and a rectangular shape.
Noncircular → It is formed from "non-" (meaning not) and "circular" (from Latin "circularis", meaning circular or round). The word "noncircular" means not circular or not in the shape of a circle.
Think of 'non-' meaning 'not' and 'circular' referring to a circle — so noncircular describes something that is not in the shape of a circle.