adjective, dim⋅mer, dim⋅mest, verb, dimmed, dim⋅ming.| 1. | not bright; obscure from lack of light or emitted light: a dim room; a dim flashlight. |
| 2. | not seen clearly or in detail; indistinct: a dim object in the distance. |
| 3. | not clear to the mind; vague: a dim idea. |
| 4. | not brilliant; dull in luster: a dim color. |
| 5. | not clear or distinct to the senses; faint: a dim sound. |
| 6. | not seeing clearly: eyes dim with tears. |
| 7. | tending to be unfavorable; not likely to happen, succeed, be favorable, etc.: a dim chance of winning. |
| 8. | not understanding clearly. |
| 9. | rather stupid; dim-witted. |
| 10. | to make dim or dimmer. |
| 11. | to switch (the headlights of a vehicle) from the high to the low beam. |
| 12. | to become or grow dim or dimmer. |
| 13. | dim out, (in wartime) to reduce the night illumination of (a city, ship, etc.) to make it less visible from the air or sea, as a protection from enemy aircraft or ships. |
| 14. | take a dim view of, to regard with disapproval, skepticism, or dismay: Her mother takes a dim view of her choice of friends. |

| 1. | dimension. |
| 2. | (in prescriptions) one-half. Origin: < L dīmidius ![]() |
| 3. | diminish. |
| 4. | diminuendo. |
| 5. | diminutive. |
dim (dĭm) adj. dim·mer, dim·mest
To make or become dim. n.
[Middle English, from Old English.] dim'ly adv., dim'ness n. |
dim
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dim. abbr.
Latin dimidius (half)
DIM
DIM statement