underground lair
Subterranean hidden base
An underground lair is a hidden dwelling or hideout beneath the earth's surface, typically associated with villains, monsters, or secretive operations.
The phrase evokes comic-book supervillains plotting world domination or creatures lurking in subterranean chambers: The evil genius retreated to his underground lair.
In casual use, any basement workspace or private retreat might be called an underground lair, usually with ironic self-awareness.
- bunkerReinforced subterranean stronghold
- hideoutSecret place of refuge
- safe houseSecret secure refuge
- cavernLarge natural underground chamber
- tunnelEnclosed underground route
escape tunnel · secret · burrow · den · vault · crypt · subterranean · darkness · shadows · labyrinth · passage · chamber · booby traps · refuge · sanctuary · damp · hidden · cave
- hiding placeshideout, bolthole, cubbyhole, den, hidey-hole
- Fantasy WorldsNarnia, Middle-earth, Discworld, Oz, Hogwarts
- spooky placeshaunted house, graveyard, catacombs, dungeon, mausoleum
underground lairpenthouse
Top-floor luxury apartment
tower · aerie · high-rise apartment · crow's nest · treehouse
underground, lair, under, ground, grounds, grounded, grounding, groundless, undergrounds