Direct and Invariant

Direct adjective - Done or working without something else coming in between.

Invariant and direct are semantically related In some cases you can replace term "Invariant" with "Direct", this adjectives are similar.

Nearby Words: direction, directed, directly, directing, directness

Invariant adjective - Not varying.

Direct and invariant are semantically related in even topic. Sometimes you can use "Direct" instead an adjective "Invariant".

Nearby Words: invariable, invariability