Definition of nonconforming in US English:

nonconforming

adjective

  • Failing or refusing to conform; belonging, relating to, or supporting nonconformity; specifically not conforming, adhering, or assenting to the usages of the Church of England (or any established church); nonconformist.

Origin

Mid 17th century; earliest use found in John Saltmarsh (d. 1647), preacher and religious controversialist. From non- + conforming.

Pronunciation

nonconforming

/ˌnɒnkənˈfɔːmɪŋ/