A deluge is a sudden and overwhelming amount of something, typically referring to rain. The antonyms or opposite words for deluge would be very mild and minimal rain, often referred to as a light drizzle, sprinkling or trickle. A deluge can also refer to a rush or surge in something, such as enthusiasm or emotions. Opposite words for this meaning could include calm, tranquillity, and relaxation. Deluge can also be used to describe an overwhelming amount of information or work. In this context, opposite words could be simplicity, minimalism, and ease. All of these antonyms are in direct contrast to the force and abundance that the word deluge implies.