: not causing or accompanied by physical pain : not painful
a painless skin growth
painless medical procedures
… the medical exam may include an electrocardiogram, or EKG. This noninvasive test is a painless procedure that measures your heart's activity. Sarah Shelton
The relatively painless injections are intended to provide temporary relief for arthritic pain and stiffness. Larry Katzenstein
2
: not difficult : not causing or involving complications or emotional distress
There's an easy way to apply for federal aid in the form of grants and student loans: Just fill out the FAFSA, or Free Application for Federal Student Aid. It's a fairly painless process, and you can even do it online. Maurie Backman