Synonyms: uncompounded, unmixed
Definition: not constituting a compound
Similar words: uncombined
Definition: not joined or united into one
Synonyms: plain, sheer, unmingled, unmixed
Definition: not mixed with extraneous elements
Usage: plain water; sheer wine; not an unmixed blessing
Similar words: pure
Definition: free of extraneous elements of any kind
Usage: pure air and water; pure gold; pure primary colors; the violin's pure and lovely song; pure tones; pure oxygen