It depends on what the death was from.
Painless Parker died in 1951.
No one knows how Dean will die. It will hopefully be painless and comfortable.
There is no past tense. For example " it was almost painless" or "it is quite painless" It stays the same in all tenses.
The opposite of painless is painful
An anagram for painless is spaniels.
Suicide is Painless Music by Johnny Mandel Lyrics by Mike Altman
because it is a mostly painless way to die because it breaks the victims neck and kills them instantly
"The injection will be absolutely painless, Bill".
Painless Parker was born in 1871.
I was a bit nervous about donating blood, but the procedure was practically painless.
burn the coal in night, is a painless killer (human killer)
Painless Love was created on 1918-10-23.