Napiform is an adjective that describes something that is shaped like a turnip. Here are a few synonyms for this word: bulbous, swollen, rounded, globular, oblate, spheroidal, rotund, and tumid. These words can be used interchangeably with napiform to describe shapes that are similar to a turnip, such as a bulbous root or a rounded fruit. Using these synonyms can help to add variety and nuance to writing, especially when describing natural objects or shapes. Whether describing a napiform vegetable or a napiform stone, there are many words that can be used to convey the same meaning in different ways.