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colossal

co·los·sal

colossal

pronunciation:
k la sl
part of speech: adjective
definition: extremely large in size, magnitude, or effect; enormous; gigantic; huge.
The museum is a colossal building.She could not face the truth, and telling her was a colossal mistake.
synonyms:
enormous, gigantic, huge, immense, mammoth, mighty, monstrous, tremendous
antonyms:
tiny
similar words:
Brobdingnagian, commanding, cyclopean, exceeding, exorbitant, extraordinary, gargantuan, giant, humongous, imposing, jumbo, massive, monster, monumental, oversize, overwhelming, powerful, prodigious, vast
derivation: colossally (adv.)