adj.
Pronunciation: -y ə s
Function: adjective
Date: 15th century
1 a : given to or engaged in rebellion < rebellious troops> b : of, relating to, or characteristic of a rebel or rebellion <a rebellious speech>
2 : resisting treatment or management : REFRACTORY
– re · bel · lious · ly adverb
– re · bel · lious · ness noun