Constant and Longstanding

Constant adjective - Not undergoing a change in condition.

Longstanding and constant are semantically related In some cases you can use "Longstanding" instead an adjective "Constant".

Nearby Words: consistent, constantly, constancy, Constance, Constanta

Longstanding adjective - Having existed for a long time.

Constant and longstanding are semantically related in enduring topic. Sometimes you can use "Constant" instead an adjective "Longstanding", if it concerns topics such as lasting, incessant, chronic.