| cheerful | (adjective) being full of or promoting cheer; having or showing good spirits | - |
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| (adjective) pleasantly (even unrealistically) optimistic | Synonyms: pollyannaish, upbeat |
| cheering | (adjective) providing freedom from worry | Synonyms: comforting, satisfying |
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| cheerless | (adjective) causing sad feelings of gloom and inadequacy | Synonyms: depressing, uncheerful |
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| cheery | (adjective) bright and pleasant; promoting a feeling of cheer | Synonyms: gay, sunny |
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| sheer | (adjective) complete and without restriction or qualification; sometimes used informally as intensifiers | Synonyms: absolute, downright, out-and-out, rank, right-down |
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| (adjective) not mixed with extraneous elements | Synonyms: plain, unmingled, unmixed |
| (adjective) very steep; having a prominent and almost vertical front | Synonyms: bluff, bold |
| (adjective) so thin as to transmit light | Synonyms: cobwebby, diaphanous, filmy, gauze-like, gauzy, gossamer, see-through, transparent, vaporous, vapourous |
| uncheerful | (adjective) causing sad feelings of gloom and inadequacy | Synonyms: cheerless, depressing |
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