Antonyms of adj plutonic

1 sense of plutonic

Sense 1
irruptive, plutonic -- (of igneous rock that has solidified beneath the earth's surface; granite or diorite or gabbro)

INDIRECT (VIA intrusive) -> extrusive -- (of rock material; forced out while molten through cracks in the earth's surface)

Similarity of adj plutonic

1 sense of plutonic

Sense 1
irruptive, plutonic -- (of igneous rock that has solidified beneath the earth's surface; granite or diorite or gabbro)
       => intrusive (vs. extrusive) -- (of rock material; forced while molten into cracks between layers of other rock)