atavism /atˈə-vi-zm/

1. The reappearance of ancestral, but not parental, characteristics
2. Reversion to an ancestral, or to a primitive, type

atavistˈic adjective

atavistˈically adverb

• unpropitiously
• unpropitiousness
• unproportionable
• unproportionably
• unproportionate
• unproportionately
• unproportioned
• unproposed
• unpropped
• unpropping
• unprops
• unprosperous
• unprosperously
• unprosperousness
• unprotected
• unprotectedness
• unprotectednesses
• unprotestantise
• unprotestantised
• unprotestantises
• unprotestantising
• unprotestantize
• unprotestantized
• unprotestantizes
• unprotestantizing