noun
plain and lucid; articulate
Describes speech or writing that is clear, easy to understand, and well-expressed. Often used in formal or literary contexts.
彼の説明は平明達意で、誰にでも理解できた。
His explanation was plain and lucid, and anyone could understand it.
平明達意な文章を書くよう心がけている。
I try to write in a plain and articulate style.
A four-character compound (yojijukugo) combining 平明 (plain, clear) and 達意 (conveying meaning). The exact historical origin is uncertain, but it follows a common pattern of pairing synonymous or complementary two-character words.