unslack en · ADJ
Etymology
From un- + slack.
Meanings
-
(rare) Not slack.
[…] and only 27 percent of the unslack sample planes were clay.
1961, American Institute of Mining, Metallurgical, and Petroleum Engineers, Papers and Discussions Presented Before the [Coal] Division, page 440:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| more unslack | Degree=Cmp | lexicographic | |
| most unslack | Degree=Sup | lexicographic |