Arduous and Steep

Arduous adjective - Requiring considerable physical or mental effort.

Steep is a synonym for arduous in difficult topic. In some cases you can use "Steep" instead an adjective "Arduous", when it comes to topics like precipitous.

Nearby Word: arduously

Steep adjective - Having an incline approaching the perpendicular.

Arduous is a synonym for steep in property topic. You can use "Arduous" instead an adjective "Steep", if it concerns topics such as course, precipitous.

Nearby Words: steeped, steeping, steepness, steeple, steeply