insecure
in-se-cure
adjective
Lacking confidence and feeling anxious about oneself or one's abilities.
"She felt insecure about her new job."
adjective
Not firmly fixed, protected, or stable; liable to give way.
"The ladder felt insecure on the uneven ground."
Thesaurus
Synonyms: vulnerable, unsafe, unassured, overanxious, shaky, unsecured, unguaranteed, precarious
Antonyms: secure, unafraid, untroubled