Question

does fluid oppose the notion of an object moving in it

Answer 1

Yes,fluid oppose the motion of an object moving in it and this tendency is called Buoyancy. 

Answer 2

The kind of opposing force  that fluids cause  is called  buoyancy  when an object is moving vertically down in a fluid.  Buoyancy force is equal to the weight of fluid displaced by the object.

There is also another kind of force that is caused against the object motion is called  drag  -- this is like friction...    The  force of drag is proportional to the magnitude of the velocity of the object.    Drag is applicable in all directions..

For example,  mercury, thick fluid like molten wax, honey offer a lot of drag..     thin fluids like air,  gases,  dilute liquids offer less drag.