IPA: /ˌoʊvərˈsɛnsɪtɪv/
KK: /oʊvərˈsɛnsɪtɪv/
Very easily affected by things, especially emotions or feelings.
She is often oversensitive to criticism, taking it very personally.
Oversensitive → It is formed from "over-" (meaning excessively) and "sensitive" (from Latin "sensitivus", meaning capable of feeling or perceiving). The word "oversensitive" means excessively capable of feeling or perceiving, often in an emotional context.
Think of being 'excessively' ('over-') 'capable of feeling' ('sensitive') — that's why oversensitive describes someone who feels too much.