1. (noun) the act of causing something to move to a lower level

• letting down

2. (adjective) darkened by clouds

• heavy
• sullen
• threatening

1. (adjective) darkened by clouds

• cloudy

1. (noun) the act of causing to become less

• decrease
• diminution
• reduction
• step-down

2. (noun) the act of causing something to move to a lower level

• movement

1. (noun) the act of causing to become less

• tapering

1. (noun) the act of causing to become less

• depress
• lower
• lour
• lower
• turn down

2. (noun) the act of causing something to move to a lower level

• bring down
• get down
• let down
• lower
• take down

3. (adjective) darkened by clouds

• glumness
• moroseness
• sullenness