Arduous and Weighty

Arduous adjective - Requiring considerable physical or mental effort.

Weighty and arduous are semantically related in difficult topic. In some cases you can use "Weighty" instead an adjective "Arduous", when it comes to topics like heavy.

Nearby Word: arduously

Weighty adjective - Having a matter of importance as its topic.

Arduous and weighty are semantically related in difficult topic. Sometimes you can use "Arduous" instead an adjective "Weighty", if it concerns topics such as heavy.

Nearby Words: weight, weighted, weighting, weightless, weightily