to be unaware, be caught unawares

be totally unaware of

remain totally unknown, remain secret

remain totally in the dark, remain unaware

(a place) to be overcrowded or filled to capacity

be too busy or occupied in work, not having a moment's leisure

Be badly busy, be deadly busy.

be very busy, have one's hands full

not being grateful or thankful, not be greatful to anyone

be penniless, have no money

be good-for-nothing, be of no use or worthless