1. The ordinal number of fifty-five in counting order
   - fifty-fifth

See also: ordinal

• undiplomatically
• undirected
• undiscerning
• undischarged
• undiscipline
• undisciplined
• undisclosed
• undiscouraged
• undiscoverable
• undiscovered
• undiscriminating
• undisguised
• undismayed
• undisputable
• undisputed
• undisputedly
• undissolved
• undistinguishable
• undistinguished
• undistorted
• undistributed
• undisturbed
• undiversified
• undividable
• undivided