melt vs immix

melt is a noun but immix is not a noun.

Word	Noun	Adjective	Verb	Adverb
melt	Yes	No	Yes	No
immix	No	No	Yes	No

As verbs, immix is a hypernym of melt; that is, immix is a word with a broader meaning than melt:

Other hypernyms of melt include blend, coalesce, combine, commingle, conflate, flux, fuse, meld, merge, mix.

melt (noun)	immix (noun)
the process whereby heat changes something from a solid to a liquid

melt (verb)	immix (verb)
become or cause to become soft or liquid	mix together different elements
reduce or cause to be reduced from a solid to a liquid state, usually by heating
lose its distinct outline or shape; blend gradually
become more relaxed, easygoing, or genial
become less clearly visible or distinguishable; disappear gradually or seemingly
become less intense and fade away gradually