Antonyms of adj unmelted

1 sense of unmelted

Sense 1
unmelted (vs. melted) -- (not melted; "streets unpassable because of piles of unmelted snow")

melted (vs. unmelted), liquid, liquified -- (changed from a solid to a liquid state; "rivers filled to overflowing by melted snow")
        => dissolved -- ((of solid matter) reduced to a liquid form; "add the dissolved gelatin")
        => fusible -- (capable of being melted and fused)
        => molten, liquefied, liquified -- (reduced to liquid form by heating; "a mass of molten rock")
        => thawed -- (no longer frozen solid; "the thawed ice was treacherous")

Similarity of adj unmelted

1 sense of unmelted

Sense 1
unmelted (vs. melted) -- (not melted; "streets unpassable because of piles of unmelted snow")
       => frozen -- (not thawed)
       => undissolved -- (retaining a solid form; "undissolved sugar in the bottom of the cup")
          Also See-> frozen#1