Girlish is characteristics of girls. Means being immature. Girly means very feminine.

Hello... here is the definitions...I think it's clear somehow Girlish: behaving like a girl, looking like a girl, or suitable for a girl Girly (adj) = girlie : 1. british english: a girl or woman who is girlie behaves in a silly way, for example by pretending to be shy or always thinking about how she looks 2. British English spoken: suitable only for girls rather than men or boys Girlie (noun) : an offensive word used by men when talking to a woman who they think is less sensible or intelligent than a man