1. Relating to a historical tendency for a language to reduce its use of inflections
   - syncretic, syncretistic, syncretistical 
2. Of or characterized by syncretism
   - syncretic, syncretistic, syncretistical

See also: syncretism

• unromantic
• unromantically
• unroofed
• unrouged
• unrounded
• unruffled
• unruliness
• unruly
• unsaddle
• unsaddled
• unsafe
• unsafely
• unsaid
• unsalable
• unsalaried
• unsaleable
• unsalted
• unsanctification
• unsanctified
• unsanctify
• unsanctioned
• unsanded
• unsanitariness
• unsanitary
• unsaponified