Answer: antsiest

AnswerCrossword Clue
ANTSIESTLeast likely to sit still
ANTSIESTMost restless
ANTSIESTMost impatient
ANTSIESTMost fidgety
ANTSIESTRestless to the max
antsiestunable to sit or stand still; fidgety
antsiestapprehensive, uneasy, or nervous
antsiestANTSY, fidgety (restless (unable to remain at rest))