Definition of philander
philandered;
philandering
play
\fə-ˈlan-d(ə-)riŋ\
: to have casual or illicit sex with a person or with many people;
especially
: to be sexually unfaithful to one's spouse
—usually used of a man
- … her philandering brother-in-law; and … the schoolteacher he philanders with.
- —Judith Crist
