na-adjective, noun
Dated synonym for 簡単; used in older texts or formal contexts. In modern Japanese, 簡単 is the natural choice.
See also: 簡単
この問題は単簡に解決できる。
This problem can be solved simply.
彼の説明は単簡でわかりやすかった。
His explanation was simple and easy to understand.
The modern, standard word for 'simple' or 'easy'. 単簡 is a dated variant with the same meaning.
A kanji compound of 単 (simple) and 簡 (simplicity), forming a word that is essentially synonymous with 簡単. The exact historical derivation is uncertain, but it is now considered dated.