Antonyms of adj extrusive

1 sense of extrusive

Sense 1
extrusive (vs. intrusive) -- (of rock material; forced out while molten through cracks in the earth's surface)

intrusive (vs. extrusive) -- (of rock material; forced while molten into cracks between layers of other rock)
        => irruptive, plutonic -- (of igneous rock that has solidified beneath the earth's surface; granite or diorite or gabbro)

Similarity of adj extrusive

1 sense of extrusive

Sense 1
extrusive (vs. intrusive) -- (of rock material; forced out while molten through cracks in the earth's surface)
       => volcanic -- (igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt; "volcanic rock includes the volcanic glass obsidian")