candid

adjective
1
saying what you think openly and honestly; not hiding your thoughts
رک, صریح, صادق, بی‌پرده
see also candour
2
a candid photograph is one that is taken without the person in it knowing that they are being photographed
بی‌خبر, آنی
He mingled among the guests and took the candid shots which were much more fun than the formal group photographs.