Definition of unalloyed:
categorical, neat, complete, all-out, plumb, rank, absolute, flat, definite, profound, utter, refined, bodacious, fine, damned, total, straight, unmixed, Midland, very, unqualified, unmitigated, dead, stone, fair, regular, straight-out, out-and-out, purified, outright, deadly, blank, crashing, thorough, thoroughgoing, sound, unconditional, resounding, consummate, blooming, damn, cotton-picking, arrant, in-depth, good, perfect, flat-out, downright, dreadful, sheer.
pure (part of speech: adjective)
To Mabel such intimacies meant escape from all the heart- breaking routine of misery and struggle which was her daily life; they were interludes of unalloyed happiness, white moments in the sad business of living.- "Comrade Yetta", Albert Edwards.
- "Education: How Old The New", James J. Walsh.
He says of this in his journal: I doubt whether any people was ever actuated by a more genuine and disinterested public spirit; though, of course, it is not unalloyed with baser motives and tendencies.- "The Life and Genius of Nathaniel Hawthorne", Frank Preston Stearns.