1. Not often
   "we rarely met"
   - seldom, seldomly [non-standard]

See also: rare

Antonym: often

• nonparallel
• nonparametric
• nonparametric statistic
• nonparametric statistics
• nonparasitic
• nonpareil
• nonparticipant
• nonparticipation
• nonparticulate
• nonparticulate radiation
• nonpartisan
• nonpartisanship
• nonpartizan
• nonpasserine
• nonpasserine bird
• nonpayment
• nonperformance
• nonperiodic
• nonperson
• nonpersonal
• nonphotosynthetic
• nonphysical
• nonplus
• nonplused
• nonplussed