layman
[noun]
Synonyms: amateur, lay person, nonprofessional, outsider

[TahlilGaran] English Synonym Dictionary ▲

lay‧man /ˈleɪmən/ noun (plural laymen /-mən/) [countable]

1. someone who is not trained in a particular subject or type of work, especially when they are being compared with someone who is Antonym : expert ⇒ laywoman:
To the layman (=laymen in general) all these plants look pretty similar.
If you don’t understand what the doctor says, ask to have it explained in layman’s terms (=in simple language).

2. someone who is not a priest but is a member of a church ⇒ laywoman

[TahlilGaran] Dictionary of Contemporary English ▲