Solid and Watershed

Solid noun - The state in which a substance has no tendency to flow under moderate stress; resists forces (such as compression) that tend to deform it; and retains a definite size and shape.

Watershed is an antonym for solid.

Nearby Words: solidify, solidly, solidity, solidified

Watershed noun - A point in a chain of events at which an important change (as in one's fortunes) occurs.

Solid is an antonym for watershed.