in simple terms
- simplyIn plain terms
- plainlyIn obvious fashion
- basicallyAt the most essential level
- essentiallyAt its core nature
- straightforwardClear and uncomplicated
layman's terms · nutshell · dumbed down · clear · easy · uncomplicated · explain · clarify · boil down · gist · bottom line · in short · briefly · fundamentally · digestible · accessible · plain English · unpacking