Fast and Low-down

Fast adjective - Moving, proceeding, or acting with great speed.

Low-down and fast are semantically related In some cases you can use "Low-down" instead an adjective "Fast".

Nearby Words: fasted, fasting

Low-down adjective - Not following or in accordance with standards of honor and decency.

Fast and low-down are semantically related in lustful topic. Sometimes you can use "Fast" instead an adjective phrase "Low-down", if it concerns topics such as sexually aroused.