sanserif

/S AE1 N S ER0 IY1 F/
noun
  1. 1

    A typeface in which the characters do not have serifs.

Antonyms

adjective
  1. 1

    Of a typeface, without serifs.

Source: https://en.wiktionary.org/wiki/sans%20serif, https://en.wiktionary.org/wiki/sanserif