nonentity[
nɑ'nɛntətɪ]
n. 
存

, 非


, 虚
nonentity[ noun ]- the state of not existing
<noun.state>
- a person of no influence
<noun.person>

Nonentity \Non*en"ti*ty\, n.; pl. {Nonentities}.
1. Nonexistence; the negation of being.
2. A thing not existing. --South.
3. A person or thing of little or no account; an unimportant
person; -- usually used as a disparaging term. [Colloq.]
[1913 Webster +PJC]