| Text | Length |
| More clamant | 12 |
| More clamorous | 14 |
| More classy | 11 |
| More claudicant | 15 |
| More clear-headed | 17 |
| More clearheaded | 16 |
| More clement | 12 |
| More clever | 11 |
| More clichéd | 15 |
| More clogged, as a delta | 24 |
| More close | 10 |
| More close-fitting | 18 |
| More closely fitting | 20 |
| More closely populated | 22 |
| More closely resembling wool | 28 |
| More cloud-covered | 18 |
| More cloudy | 11 |
| More clownish | 13 |
| More cluttered | 14 |
| More coarse | 11 |
| More cockamamie | 15 |
| More Coke, e.g. | 15 |
| More cold | 9 |
| More cold and damp | 18 |
| More cold and wet | 17 |
| More collected | 14 |
| More collectible, maybe | 23 |
| More colorless | 14 |
| More combative | 14 |
| More combos | 11 |
| More comely | 11 |
| More comfortable | 16 |
| More comfortable and cozy | 25 |
| More comfortable, quite possibly | 32 |
| More comfy | 10 |
| More commodious | 15 |
| More common name for caustic soda | 33 |
| More commonplace | 16 |
| More compact | 12 |
| More compact than compact | 25 |
| More companionable | 18 |
| More compassionate | 18 |
| More compendious | 16 |
| More competent | 14 |
| More complaining | 16 |
| More complete | 13 |
| More complex | 12 |
| More complex and confusing | 26 |
| More compliant | 14 |
| More compos mentis | 18 |
| More composed | 13 |
| More computer savvy | 19 |
| More conceited | 14 |
| More concentrated | 17 |
| More concise | 12 |
| More condescending | 18 |
| More confident | 14 |
| More confusing | 14 |
| More congenial | 14 |
| More conniving | 14 |
| More conservative | 17 |
| More conservative, as investments | 33 |
| More conservative, investment-wise | 34 |
| More considerate | 16 |
| More conspiratorial | 19 |
| More constant | 13 |
| More constricting | 17 |
| More construct-ive criticism ... | 32 |
| More contaminated | 17 |
| More contemporary | 17 |
| More contemptible | 17 |
| More content | 12 |
| More contiguous | 15 |
| More contrite | 13 |
| More contrived | 14 |
| More convenient | 15 |
| More convinced | 14 |
| More cool | 9 |
| More cool, in slang | 19 |
| More cool, man | 14 |
| More cool, to a rapper | 22 |
| More copious | 12 |
| More coquettish | 15 |
| More cordial | 12 |
| More cordial old-timer? | 23 |
| More cordlike | 13 |
| More cornball | 13 |
| More corny | 10 |
| More corpulent | 14 |
| More correct | 12 |
| More corrugated | 15 |
| More corrupt | 12 |
| More costly | 11 |
| More costly, as a battle | 24 |
| More courageous | 15 |
| More courageous vixen? | 22 |
| More courteous | 14 |
| More covered, as fish and reptiles | 34 |
| More covetous | 13 |
| More cowlike? | 13 |
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