disrespectful

adjectives

exhibiting lack of respect; rude and discourteous
"remarks disrespectful of the law"; "disrespectful in the presence of his parents"; "disrespectful toward his teacher"
antonym
is similar to
making light of
"afire with annihilating invective"; "a devastating portrait of human folly"; "to compliments inflated I've a withering reply"- W.S.Gilbert
is similar to
expressing extreme contempt
is similar to
arrogantly insolent
is similar to
abusing vocally; expressing contempt or ridicule
"derisive laughter"; "a jeering crowd"; "her mocking smile"; "taunting shouts of `coward' and `sissy'"
is similar to
lacking due respect or dutifulness
"impious toward one's parents"; "an undutiful son"
is similar to
marked by casual disrespect
"a flip answer to serious question"; "the student was kept in for impudent behavior"
is similar to
not showing courteous respect
see also
showing no courtesy; rude
"a distant and at times discourteous young"
see also
having or showing an exaggerated opinion of your importance, ability, etc
"brash immodest boasting"
see also
causing anger or annoyance
"offensive remarks"
see also
showing lack of due respect or veneration
"irreverent scholars mocking sacred things"; "noisy irreverent tourists"
see also
expressing or expressive of ridicule that wounds
neither feeling nor showing respect