Origin: Germanic Old English suffix
Restlessness has 5 different meanings across 1 category:
a lack of patience; irritation with anything that causes delay
a feeling of agitation expressed in continual motion
"he's got the fidgets"
"waiting gave him a feeling of restlessness"
inability to rest or relax or be still
The state or condition of being restless; an inability to be still, quiet, at peace or comfortable.