MOLTEN

molten, liquefied, liquified

(adjective) reduced to liquid form by heating; “a mass of molten rock”

MELT

fade, melt

(verb) become less clearly visible or distinguishable; disappear gradually or seemingly; “The scene begins to fade”; “The tree trunks are melting into the forest at dusk”

mellow, melt, mellow out

(verb) become more relaxed, easygoing, or genial; “With age, he mellowed”

dissolve, thaw, unfreeze, unthaw, dethaw, melt

(verb) become or cause to become soft or liquid; “The sun melted the ice”; “the ice thawed”; “the ice cream melted”; “The heat melted the wax”; “The giant iceberg dissolved over the years during the global warming phase”; “dethaw the meat”

melt, meld

(verb) lose its distinct outline or shape; blend gradually; “Hundreds of actors were melting into the scene”

melt, run, melt down

(verb) reduce or cause to be reduced from a solid to a liquid state, usually by heating; “melt butter”; “melt down gold”; “The wax melted in the sun”

Source: WordNet® 3.1