1. Not able to be ascertained; resisting discovery
   - unascertainable

See also: indeterminable, undeterminable

• rediscover
• rediscovery
• redispose
• redisposition
• redissolve
• redistribute
• redistributed
• redistribution
• redistrict
• redivide
• redivivus
• redline
• redly
• redmaids
• redneck
• redness
• redo
• redolence
• redolent
• redolently
• Redonda
• redouble
• redoubled
• redoubt
• redoubtable