Of, facing, situated in, or related to the south-west (adjective)
Blowing from the south-west; south-westerly (adjective)
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Use "south-western" in a sentence
"At dawn, attempting to break forth down the south-western slopes of the mountain toward Petaluma, he had encountered not less than five separate detachments of dairy-ranchers all armed with Winchesters and shotguns."
"Even the grim south-western promontory showed less grim, and here and there, where the sea-spray wet its surface, high lights flashed and dazzled in the sun."
"Interestingly, the warming is greater in the south-eastern US, but because the south-western states are already closer to the threshold temperature for heat stress events, they get more heatwaves."