nonunderlined

As a noun terms

is .

As an adjective nonunderlined is

not underlined.

As adjectives the difference between underline and nonunderlined

is that underline is passing under a railway line while nonunderlined is not underlined.

As a noun underline

is a line placed underneath a piece of text in order to provide emphasis or (in electronic documents) to indicate that it should be viewed in italics or that it acts as a hyperlink.

As a verb underline

is to draw a line underneath something, especially to add emphasis; to underscore.