Sit down
The opposite position of sit is "stand."
Standing, NOT FALLING, balanced, etc....
Blend in
Blend in
The opposite of up is down. So, opposite of the opposite of up is up itself.
...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
stand