U1M3P3T1E1E1N1T1H4
16 points
UMPTEENTH is validvalid
pertaining to a large ordinal number
the ordinal of umpteen / an indefinitely large number in a sequence, also UMPTIETH, UMTEENTH
pertaining to a large ordinal number
the ordinal of umpteen / an indefinitely large number in a sequence, also UMPTIETH, UMTEENTH