Definitions:

1. not conforming to accepted rules or standards adjective
   • Your unconventional dress and hair style was not popular with my family.
2. not conforming to legality, moral law, or social convention adjective
   • an unconventional marriage
3. not conventional or conformist adjective
   • unconventional life styles

Synonyms:

• improper

NearBy Words:

• unconventionality
• unconventionally