IPA: /ʌnˈraʊndɪd/
KK: /ʌnˈraʊndɪd/
Not having a smooth or curved shape; having sharp or angular edges.
The unrounded corners of the table made it look modern and sleek.
Unrounded → It is formed from "un-" (meaning not) and "rounded" (from Old French *rond*, meaning circular or round). The word "unrounded" means not circular or lacking roundness.
Think of 'not' ('un-') being added to 'rounded' to remember that 'unrounded' means something that is not circular.