nonexpert

/ˌnɑnˈɛkspɜrt/
noun
  1. A person who is not an expert; a beginner or amateur in a particular field.
    • The panel included both experts and nonexperts to get a range of opinions.
    • The book is written for nonexperts who want to learn about astronomy.
    • As a nonexpert in car repair, he had to call a mechanic.
Antonyms
adjective
  1. Not having specialized knowledge or skill in a particular area.
    • His nonexpert advice on investing should be taken with caution.
    • The guide offered a nonexpert explanation that was easy for tourists to understand.
    • She gave a nonexpert opinion on the painting, but her enthusiasm was clear.