noun-modifying (irregular)
Describes explanations, descriptions, or language that is simple, accessible, and not overly formal or technical.
This book is written in plain language.
noun-modifying (irregular)
Used for greetings, expressions, or a person's manner that is casual, warm, and approachable rather than stiff or formal.
The teacher explained the difficult concept in an easy-to-understand way.
He always treats me in a friendly, informal manner.
We exchanged casual greetings.
Derived from the past/prenominal form of the verb 砕く (to break, crush). The adjective sense developed from the idea of something being 'broken down' into a simpler, more approachable form.