Rebellious

wiktionary

ref

From Middle English rebellious; equivalent to rebel +‎ -ious.

etymonline

ref

rebellious (adj.)

"insubordinate, defying lawful authority, acting as rebels do or having the disposition of one," early 15c., from Latin rebellis (see rebel (adj.)) + -ous. Of things, "hard to treat or deal with," 1570s. Another old word for it was rebellant (early 15c.). Related: Rebelliously; rebelliousness.