noun
something to be desired; not yet satisfactory
Archaic or highly literary expression meaning that something is still lacking or not yet good enough. In modern Japanese, it is almost never used in everyday speech; it may appear in classical texts or very formal writing.
この計画には未だしの点が多い。
This plan still has many points that leave something to be desired.
彼の説明は未だしで、納得できなかった。
His explanation was not yet satisfactory, and I was not convinced.