is similar to
wilfully obstinate; stubbornly disobedient
"a contumaceous witness is subject to punishment"
is similar to
unwilling to submit to authority
"unruly teenagers"
is similar to
disposed to or in a state of mutiny
"the men became mutinous and insubordinate"
is similar to
resisting control or authority
"temperamentally rebellious"; "a rebellious crew"
see also
boldly resisting authority or an opposing force
"brought up to be aggressive and defiant"; "a defiant attitude"