1. Amazingly impressive; suggestive of the flashing of lightning
   - dazzling, fulgurant, fulgurous

See also: impressive

• undistinguishable
• undistinguished
• undistorted
• undistributed
• undisturbed
• undiversified
• undividable
• undivided
• undivided interest
• undivided right
• undo
• undoable
• undock
• undocumented
• undoer
• undogmatic
• undogmatical
• undoing
• undomestic
• undomesticated
• undone
• undoubted
• undoubtedly
• undrained
• undramatic