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Webster 1913 Edition

Adj.

Characterized by small rain, or snow; moist and disagreeable.

“Winter’s drizzly reign.”

Dryden.

Adj.

Shedding small rain, or small particles of snow.

The winters drizzly reign.

drizzly ‎(comparative drizzlier, superlative drizzliest)

abounding with drizzle; drizzling