1) The unrigorous experiment yielded inconclusive results.

2) The unrigorous process led to errors in the data analysis.

3) Her unrigorous approach to problem-solving often led to oversights.

4) The unrigorous study lacked proper controls and methodology.

5) The unrigorous examination of the evidence resulted in a flawed conclusion.

6) Without proper standards, the research was unrigorous and unreliable.

7) The unrigorous evaluation of the project failed to identify key flaws.

8) An unrigorous investigation will not uncover the truth behind the incident.

9) The unrigorous testing procedure did not ensure accurate measurements.

10) Due to its unrigorous nature, the theory was dismissed by the scientific community.