| DUL | not clear and resonant |
|---|---|
| DUL | blunted in responsiveness or sensibility |
| DUL | a person who evokes boredom |
| DUL | a person who is not very bright |
| DUL | deprived of color |
| DUL | made dull or blunt |
| DUL | having lost or been caused to lose interest because of overexposure |
| DUL | United States diplomat who (as Secretary of State) pursued a policy of opposition to the USSR by providing aid to American allies (1888-1959) |
| DUL | without sharpness of edge or point |
| DUL | a lack of visual brightness |
| DUL | the quality of lacking interestingness |
| DUL | the quality of being slow to understand |