MIRTHLESS
\mˈɜːθləs], \mˈɜːθləs], \m_ˈɜː_θ_l_ə_s]\
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2006
- WordNet 3.0
By Princeton University
2011
- English Dictionary Database
By DataStellar Co., Ltd
2010
- New Age Dictionary Database
By Oddity Software
1913
- Webster's Revised Unabridged Dictionary
By Noah Webster.
1874
- Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.
1914
- Nuttall's Standard dictionary of the English language
By Nuttall, P.Austin.