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| 1. | extraordinarily great in size, extent, or degree; gigantic; huge. |
| 2. | of or resembling a colossus. |
| 3. | (initial capital letter ) Architecture. noting or pertaining to a classical order whose columns or pilasters span two or more stories of a building. |
co·los·sal (kə-lŏs'əl) adj. Of a size, extent, or degree that elicits awe or taxes belief; immense. See Synonyms at enormous. [French, from Latin colossus, colossus; see colossus.] co·los'sal·ly adv. |