rigorous

US /ˈrɪɡ.ɚ.əs/

UK /ˈrɪɡ.ɚ.əs/

1.

extremely thorough and careful

:

•

The study underwent a rigorous peer review process.

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They conducted a rigorous analysis of the data.

:

thorough meticulous scrupulous painstaking diligent

2.

demanding strict adherence to rules and procedures

:

•

The training program was very rigorous, requiring participants to meet high standards.

•

The school has a rigorous academic curriculum.

:

strict demanding austere harsh severe

:

rigorously