nappier

/N AE1 P IY0 ER0/
adjective
  1. 1

    Having a nap (of cloth etc.); downy; shaggy.

  2. 2

    (sometimes offensive) Of hair: tightly curled or twisted; frizzy (often specifically in reference to Afro textured hair)

  3. 3

    Inclined to sleep; sleepy.

adjective
  1. 1

    (of a drink) Foamy; having a large head.

  2. 2

    (of a horse) Nervous, excitable.

adjective
  1. 1

    Brittle

Source: https://en.wiktionary.org/wiki/nappier, https://en.wiktionary.org/wiki/nappy