n. 倔强

[ noun ]
meanspirited disagreeable contrariness
<noun.attribute>

Cussedness \Cuss"ed*ness\ (c[u^]s"[e^]d*n[e^]s), n. [Cussed (for
cursed) + -ness.]
Disposition to willful wrongdoing; malignity; perversity;
cantankerousness; obstinacy. [Slang or Colloq., U. S.]
[Webster 1913 Suppl.]

In her opinion it was all pure ``cussedness.'' --Mrs.
Humphry Ward.
[Webster 1913 Suppl.]

Disputatiousness and perversity (what the Americans
call ``cussedness''). --James Bryce.
[Webster 1913 Suppl.]