Increase and Sinkhole

Increase noun - Something added (as by growth).

Sinkhole is an antonym for increase.

Nearby Words: increased, increasing, increment, increasingly, incremental

Sinkhole noun - A depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof.

Increase is an antonym for sinkhole in depression topic.