(adj) undergoing no change when acted upon, Ant. affected, Example:entirely unaffected by each other's writings; fibers remained apparently unaffected by the treatment
[しらず, shirazu] (n-suf) (1) not having; unaffected by; (conj) (2) (often as ~は知らず) aside; I don't know about ...; (3) (arch) (at the beginning of a sentence) I know not whether; I know not if