Painless has 3 different meanings across 1 category:
Adjective
Adjective
1
requiring little hard work or exertion
"a painless solution to the problem"
2
not causing physical or psychological pain
"painless dentistry"
3
Free from pain; without pain or trouble.
"The dentist assured me that getting a filling would be completely painless, so I relaxed into the chair without any fear."