fatherly UK /ˈfɑːðəli/US /ˈfɑðɚli/adjective 2adverb 1forms 2 adjective2 •Characteristic of what is considered the ideal behaviour pertaining to fatherhood. •Befitting of a father; protective, paternal. adverb1 •In a way pertaining to, befitting, or of a father.Exhorting him fatherlie to giue ouer that course. — 1589 formsmore fatherly · most fatherly