Denshi Jisho — Online Japanese dictionary

まれ rare; seldom
Common word, Na-adjective, Usually written using kana alone 
こき seventieth birthday; 70th birthday
Noun 
たぐいまれ unique; rare; exceptional; unparalleled; incomparable
Na-adjective 
類い たぐいまれ unique; rare; exceptional; unparalleled; incomparable
Na-adjective 

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