iconoclastic
adjective
[ ˌʌɪkɒnəˈklastɪk ]
• criticizing or attacking cherished beliefs or institutions.
• "an iconoclastic filmmaker who has pushed the boundaries with every film he's made"
Similar:
critical,
sceptical,
questioning,
heretical,
irreverent,
nonconformist,
dissident,
dissenting,
dissentient,
malcontent,
rebellious,
subversive,
renegade,
mutinous,
maverick,
original,
innovative,
groundbreaking,