mellow out - definition and synonyms

phrasal verb [intransitive/transitive] informal
present tense
I/you/we/theymellow out
he/she/itmellows out
present participlemellowing out
past tensemellowed out
past participlemellowed out
  1. to become more relaxed and calm, or to make someone more relaxed and calm

    He needs to mellow out a little.

See also main entry: mellow