adj ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Pertaining to or having the nature of fire; containing fire; resembling fire. not-comparable

   "The stone had an igneous appearance."

2. 2
   Resulting from, or produced by, great heat. With rocks, it could also mean formed from lava or magma. not-comparable

   "Granite and basalt are igneous rocks."

Adjective

1. 1
   like or suggestive of fire wordnet
2. 2
   produced by the action of fire or intense heat wordnet
3. 3
   produced under conditions involving intense heat wordnet

Synonyms

All synonyms

eruptiveeruptivefieryfierypyrogenicpyrogenous

Antonyms

All antonyms

aqueous

Example

More examples

"Igneous rocks form when lava cools."

Etymology

From Latin igneus (“fiery”).

Related phrases

igneous rocklarge igneous province

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.