Not existing; lacking.
Being away from a place; withdrawn from a place; not present; missing.
Inattentive to what is passing; absent-minded; preoccupied.
Something absent, especially absent people collectively; those who were or are not there.
In the absence of; without; except.
To keep (oneself) away.
Leave.
Not positive.
Not positive; either zero or negative.
Any value that is not positive.