No, it is a sign of strength in spirit.
Ignorance
heck no
Being nice to someone should not be a sign of weakness.
no
because it is not
No, it is not. It is not a sign of 'weakness', it is not something to 'push' through, it is not a positive sign.
Tragedy is a sign of weakness in one's faith
His acquiescence should not be construed as a sign of weakness but meekness.
Pain (and a sense of weakness in the affected area) is the most significant sign of fracture.
Pain (and a sense of weakness in the affected area) is the most significant sign of fracture.
It can be very hard not to cry if you are very sad. It is not a sign of weakness, either.
There is not specific collective noun for the noun ignorance. The noun ignorance is an uncountable noun; quantities of ignorance are expressed in degrees, for example, some ignorance, much ignorance, total ignorance, etc. A term that expresses ignorance as a collective would be, 'the collective ignorance of a group' or 'the combined ignorance of a group'.