Laymen

We should never forget that the Titanic was built by professionals and Noah's Ark was built by laymen...

His theory is not amenable to simplification for laymen.

Experts notice things laymen do not.

Soon the disenfranchised, downtrodden laymen started a full out uprising, seeking to tear out the remnants of their oppression.

Lawyers like to use professional jargon that's difficult for laymen to understand.

They are laymen.