1. prepared or adapted for winter conditions

1. past tense of winterize: to prepare or adapt something for winter conditions

Examples

• The winterized cabin had extra insulation and a backup heating system.
• They winterized their car by switching to snow tires and antifreeze.
• The winterized pool was covered and the pipes were drained.
• Our winterized camping gear kept us warm in freezing temperatures.
• The maintenance crew winterized all the outdoor equipment before the storm.
• She winterized her garden by covering the plants with protective cloth.