Antonyms of noun roundness

1 of 4 senses of roundness

Sense 3
roundness -- (the property possessed by a line or surface that is curved and not angular)
       Antonym of angularity (Sense 2)
      => angularity -- (the property possessed by a shape that has angles)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun roundness

4 senses of roundness

Sense 1
roundness, rotundity -- (the fullness of a tone of voice; "there is a musky roundness to his wordiness")
       => tone, tone of voice -- (the quality of a person's voice; "he began in a conversational tone"; "he spoke in a nervous tone of voice")

Sense 2
roundness -- (the quality of being round numbers; "he gave us the results in round numbers, but their roundness didn't affect the point he was making")
       => number, figure -- (the property possessed by a sum or total or indefinite quantity of units or individuals; "he had a number of chores to do"; "the number of parameters is small"; "the figure was about a thousand")

Sense 3
roundness -- (the property possessed by a line or surface that is curved and not angular)
       => shape, form, configuration, contour, conformation -- (any spatial attributes (especially as defined by outline); "he could barely make out their shapes")

Sense 4
plumpness, embonpoint, roundness -- (the bodily property of being well rounded)
       => fleshiness, obesity, corpulency -- (more than average fatness)