1. Not native and not fully established; locally or temporarily naturalized
   "an adventive weed"

See also: foreign, strange

• unmeaning
• unmeant
• unmeasurable
• unmeasured
• unmechanical
• unmechanised
• unmechanized
• unmediated
• unmedical
• unmedicative
• unmedicinal
• unmelodic
• unmelodious
• unmelodiously
• unmelted
• unmemorable
• unmemorably
• unmentionable
• unmercenary
• unmerchantable
• unmerciful
• unmercifully
• unmercifulness
• unmerited
• unmeritorious