restless
rest + -less
https://gyazo.com/3a9418a4a3a85dc84db1a2dcd1013062
source: Foz Restless GIF - Foz Restless CantSleep - Discover & Share GIFs
adjective
(of a person or animal) unable to rest or relax as a result of anxiety or boredom:
〈人などが〉落ち着かない, じっとしていられない; 不安な
e.g. the audience grew restless and inattentive.
offering no physical or emotional rest; involving constant activity or motion:
絶えず動いている; 休止［停止］しない.
〖名詞の前で〗よく眠れない, 休めない
e.g. a restless night.
DERIVATIVES
restlessly |ˈres(t)ləslē| adverb
ORIGIN
Old English restlēas(see rest1, -less).