regularregularregularsadjective1happening again and again with the same amount of space or time in between: a regular heartbeat A light flashed at regular intervals.oppositeirregular2going somewhere or doing something often: I've never seen him before – he's not one of my regular customers.3usual: Who is your regular doctor?4(grammar) A word that is regular has the usual verb forms or plural: ‘Work’ is a regular verb.oppositeirregular▶ regularlyadverb: We meet regularly every Friday.