Is “Jittery” a Scrabble word?
Yes
JITTERY
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Jittery
/ˈdʒɪt.ɹi/
adjective
1.Nervy, jumpy, on edge
2.Having jitter, or unwanted signal characteristics.
“jittery video playback”