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unconventional substance

/ˌʌn.kənˈvɛn.tʃənəl ˈsʌb.stəns/ · un.con.ven.tion.al sub.stan.ce
noun
  1. A substance whose properties or composition do not conform to the usual or expected standards. The artist used unconventional substances like recycled plastic and metal to create her sculpture.
noun
  1. A substance that is not commonly used or accepted in a particular context or industry. The new company developed an unconventional substance for use in the production of eco-friendly cleaning products.
Did you know? The use of unconventional substances in art and design has been a long-standing practice, with artists like Marcel Duchamp and Andy Warhol experimenting with non-traditional materials in their work.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Aug 11, 2026