Blend in
The opposite position of sit is "stand."
Blend in
...stand
stand still
of Stand, imp. & p. p. of Stand.
If someone can't stand something, that person hates or abhors it. The opposite would be adores, loves, or the like.
Stand is the opposite of "sit" and has a short vowel sound.
run, sprint
Sit down
stand
The minus sign.
Stand.