Yes, transrectal electroejaculation is very painful and is usually done under analgetics or anesthesia.
No, painful an adjective, a word that describes a noun (a painful injury, a painful situation).
painful wrist
more painful, most painful
painful!
very painful
It is painful
painful
The positive form is the original adjective. The comparative form shows a greater degree of quality. The superlative form shows the highest degree of quality."Most painful" is the superlative. The positive is "painful", the root adjective. The comparative is "most painful".
That is the correct spelling of "painful."
Painful is correct.
A painful journey would be a journey or trip that is either physically or mentally and emotionally painful.
Internal cysts can be unnoticeable or very painful. External cysts are rarely painful, but can be on occasion.