Rigorous and Taxing

Rigorous adjective - Requiring considerable physical or mental effort.

Taxing is a synonym for rigorous in heavy topic. In some cases you can use "Taxing" instead an adjective "Rigorous".

Nearby Words: rigorously, rigor, rigour, rigorism

Taxing adjective - Requiring much time, effort, or careful attention.

Rigorous is a synonym for taxing in demanding topic. Sometimes you can use "Rigorous" instead an adjective "Taxing", if it concerns topics such as heavy.

Nearby Words: tax, taxed, taxation, taxable, taxability