not very often She is rarely seen in public nowadays. We rarely agree on what to do. a rarely-performed play (formal) Rarely has a debate attracted so much media attention. You will rarely, if ever, have to wait longer than an hour.Extra examples He rarely spoke. It is a slowly developing disease, rarely fatal. It’s an interesting production of a rarely-performed play. She very rarely made a mistake. Support is provided by specialist teachers or, more rarely, interpreters. That’s something I very rarely do.