supermassive

adjective

su·​per·​mas·​sive ˌsü-pər-ˈma-siv 

: having a very large mass : extremely or extraordinarily massive

a supermassive black hole

Examples of supermassive in a Sentence

Recent Examples on the Web

There are the stellar-mass black holes with a few times the mass of the sun — and then there are the supermassive black holes with billions of times the mass of our star that dominate the hearts of all large galaxies. — Robert Lea, Space.com, 24 Sep. 2026

Quasars are actively feeding supermassive black holes, so just gobbling up all the gas. — David Brooks, The Atlantic, 20 Sep. 2026

Scientists are uncovering clues that suggest cosmic rays come from extremely hot and faraway areas of the universe, ejected by exploding stars and powerful objects called supermassive black holes. — Jesse Liu, The Conversation, 14 Sep. 2026

The scientists propose that Webb is catching supermassive black hole stars — up to 1 million times the mass of the sun — in the act of incubating the universe’s first big black holes. — Quanta Magazine, 14 Sep. 2026

Word History

First Known Use

1937, in the meaning defined above

Rhymes for supermassive

• impassive
• massive
• passive