The opposite of being still could be moving, or restless, wiggly, jumpy.
The opposite of still occurring (at this time) would be "no longer" occurring.
motion
Judder
quickness
WALK
No, extant means still existing.
The opposite is a calm sea. Other words could be placid, moderate, gentle, tranquil, etc.
A person of either sex, who is under 18 and still unmarried.
Comedian is now generally used as a common gender noun, but if you must have an opposite gender, comedienne is sometimes still used.Comedian - comedienne
The opposite of lurk is introduce. The opposite of be still is to be moving. They are two completely different words.
It is still Hot.
Be still
The opposite of still water is gaseous or "sparkling" water. Technically though there is no "still" water if the opposite is gaseous water. The reason for this is that most most water known as "still" water contains quite alot of dissolved gas. Put simply the opposite of still water sparkling, that it's gaseous contain can be seen and/or felt as sensation in the mouth.
stand still
WALK
Motion
No, extant means still existing.
still zero
Opposites for still are moving active noisy turbulent stir up no longer
Moving Landscape is the only possible term available for the opposite of still Life.If we called it static life then we could call the opposite 'moving life'. But we don't so the etymology has a problem.A Moving Landcape, entails still and moving elements (still, inanimate dead matter with living beings moving around).
The opposite of odd is even. If you divide a even or odd number with odd, you will still get a fraction, or a romander.