Nonpuella or Nonera refers to someone who is not female, partially female, or female-aligned in any way but still experiences some connection to femininity in their gender. It can also be described as a gender that is fingender but is not fiaspec/female-aligned. Nonpuella can be used as a gender on it own, or it can be used to encompass several genders, such as melle, faesari, and juxera.
The masculine equivalent is nonpuer.
Etymology
The term comes from the latin words "puella", meaning girl, and "non", meaning not.