unalloyed

[ uhn-uh-loid ]
/ ˌʌn əˈlɔɪd /

not alloyed with other metals; pure: unalloyed zinc.
total; utter: unalloyed bliss.

Origin of unalloyed

First recorded in 1660–70; un-1 + alloy + -ed2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for unalloyed

unalloyed

/ (ˌʌnəˈlɔɪd) /

adjective

not mixed or intermingled with any other thing; pureunalloyed metal; unalloyed pleasure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012