nonobservant (adj.)

• contrary
• deviant
• dissenting
• dissident
• inattentive
• inconstant
• indifferent
• lukewarm
• negligent
• noncompliant
• nonconforming
• recalcitrant
• recusant
• refractory
• unadaptable
• unadjustable
• undutiful
• unfaithful
• unobservant
• unsubmissive
• untrue