unjacketed en · ADJ
Etymology
From un- + jacketed.
Meanings
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(not-comparable) Not jacketed
The Commons teemed with airily dressed mothers and unjacketed businessmen, the emotional gloom of a winter-bound populace exposed by the sun to be as seasonally fragile as ice.
2008, Heidi Julavits, The Uses of Enchantment, page 351:unjacketed books
an engine with an unjacketed cylinder