obsidian

nounCommon GRE wordMore O words

a hard, dark, glass-like volcanic rock formed by the rapid solidification of lava

In a sentence

Obsidian in a sentence

Here is an example sentence showing obsidian in a sentence.

The ancient arrowhead was crafted from obsidian, chipped to a razor-sharp edge.

Synonyms

volcanic glassrockmineralstone

Antonyms

None listed.

Keep going

a stupid, clumsy, or boorish person

stubbornly refusing to change one's mind or course of action

a gesture or attitude of deep respect or submission

showing deferential respect or submissive obedience

a tapering stone pillar with a pyramidal top, typically erected as a monument

grossly overweight to a degree that poses a health risk

to make something deliberately unclear or confusing

the act of making something deliberately unclear or confusing

Common questions

Obsidian (noun) means a hard, dark, glass-like volcanic rock formed by the rapid solidification of lava

Here is obsidian used in an example sentence: "The ancient arrowhead was crafted from obsidian, chipped to a razor-sharp edge."

Common synonyms for obsidian include volcanic glass, rock, mineral, stone.

Obsidian is a GRE-level vocabulary word worth knowing for the Verbal section.

Vocabulary sticks when you meet it in real sentences. Practise these words inside text completion and sentence equivalence questions.