rigorous
rig|or|ous /r'ɪgərəs/
1 [ADJ] usu ADJ n
A test, system, or procedure that is rigorous is very thorough and strict.
The selection process is based on rigorous tests of competence and experience.
● rigorously [ADV]
...rigorously conducted research.
2 [ADJ] usu v-link ADJ, oft ADJ in -ing/n
If someone is rigorous in the way that they do something, they are very careful and thorough.
He is rigorous in his control of expenditure.
1 [ADJ] usu ADJ n
A test, system, or procedure that is rigorous is very thorough and strict.
The selection process is based on rigorous tests of competence and experience.
● rigorously [ADV]
...rigorously conducted research.
2 [ADJ] usu v-link ADJ, oft ADJ in -ing/n
If someone is rigorous in the way that they do something, they are very careful and thorough.
He is rigorous in his control of expenditure.