A female terminal includes a female terminal member and a protective sleeve. The female terminal member has a receptacle section to which a male terminal is to be connected and an electrical wire connecting section to which an electrical wire is to be connected. The receptacle section has a base cylindrical part and a flexible contact part extending from the base cylindrical part. The protective sleeve for protectively covering the receptable section of the female terminal member is fitted around the receptacle section. The sleeve has a base cylindrical portion fixedly fitted onto the base cylindrical part of the receptacle section and an enlarged diameter portion integrally connected to the base cylindrical portion through a step portion. When the female terminal thus constituted is fitted in a connector housing, at least one stopper arm provided in the connector housing come to engage with the step portion to securely hold the female terminal in the housing. The engagement between the stopper arm and the step portion of the female sleeve is made relatively near from a front opening of the housing.