Nonscientific (adjective)

1. Not relating to or involving science.
2. Not based on empirical evidence or scientific method.

Origin:

From non- + scientific, formed in the late 19th century.

Examples:

1. The nonscientific explanations for the natural phenomena were not accepted by the scientific community.
2. The nonscientific beliefs were considered superstitious.
3. The nonscientific approach was not suitable for solving the complex problem.
4. The nonscientific methods of healing were dismissed by the medical profession.
5. The argument was purely nonscientific and lacked any concrete evidence.