querulent

adjective
quer·​u·​lent
variants: also querulant \ ˈkwer-​(y)ə-​lənt also ˈkwir-​ \

Medical Definition of querulent

 (Entry 1 of 2)

: abnormally given to suspicion and accusation

querulent

noun

Medical Definition of querulent (Entry 2 of 2)

: one who is querulent