Having or feeling nervous unease: a jittery vigil in the dark. (adjective)
Marked by jittering movements: a jittery ride over rough terrain. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "jittery" in a sentence
"Gord stood nearby in jittery indecision — encouraged by hunger, restrained by fear."
"The technology was so named because it transmits stolen data in jittery chunks — by adding nearly imperceptible processing delays after a keystroke, and for the jitters such a bug could inspire in anyone with secure data to safeguard."
"They are named "JitterBugs," for both the way they transmit stolen data in "jittery" chunks and for the "jitters" they could inspire in anyone with secure data to safeguard."