There doesn't seem to be any real antonym for the word superimposed. It would make sense to use the word supraimposed, (as supra means earlier) however I have never seen that word used.
There is no antonym.
Theres NO Antonym
What is the antonym of position
The antonym is "forget".
never
Never.
never
always
Forever. Perpetuity.
To never give up.
never
answer it means to never ever talk again
she never taught about having a second chance
Antonyms for constantly are Never and Barely.
my guess would be the word always.
'Goose', or if your really pressed for a distinction 'hen' but this is almost never used.