ignorant

adjective
1
not having or showing much knowledge or information about things; not educated
نادان, بی‌اطلاع, جاهل, بی‌سواد, ناآگاه
2
not having any knowledge or information about a particular thing
نادان, بی‌خبر, جاهل, بی‌اطلاع, ناآگاه
At that time I was ignorant of events going on elsewhere.
He's ignorant about modern technology.
3
with very bad manners
بی‌ادب, بی‌نزاکت, بی‌تربیت
a rude, ignorant person
You're behaving like a stupid ignorant child!
synonym uncouth