DictionaryinfrequentRare occurrence
adjective

infrequent

in-FREE-kwunt/ɪnˈfriːkwənt/

Not happening often.

The calendar records infrequent rain on only two widely separated days.

Infrequent rain: a monthly weather calendar records sunshine on nearly every day, with rain on only two widely separated dates.
Etymology

The negative prefix reverses the idea of regular repetition: something infrequent occurs seldom rather than often. This meaning was already present in the Latin adjective.

In context

Kelley International27:54
summits as originally conceived by Churchill were infrequent and involved only a handful of the most important people on the planet the practice is now so widespread
The Evolution of Modern Diplomacy

More examples

  • Rain is infrequent here during the summer.
  • Infrequent bus service makes commuting difficult.
  • Power outages become more infrequent as crews replace old equipment.

Forms

infrequent · more infrequent · most infrequent

infrequently adverb — Not often; at widely separated times.

infrequency noun — The fact of not happening often.

Similar words

rare
Suggests even fewer occurrences, sometimes making them exceptional.
occasional
Emphasizes happening sometimes rather than how seldom something happens.
sporadic
Emphasizes irregular timing or scattered occurrences, not just low frequency.