Worried and upset

querulous
(adj)
KWAIR-yoo-lǝs
Meaning

fretful; nervous; worrying; whining

1st Sample Sentence

He is a querulous character who seems never to be at ease or satisfied with anything.

Root

queri (complain) (Latin)

Mnemonics

QUERULOUS=QUARREL-ous One who keeps questioning (querying) everything.