inferiority complex

noun

1. Psychiatry. intense feeling of inferiority, producing a personality characterized either by extreme reticence or, as a result of overcompensation, by extreme aggressiveness.
2. lack of self-esteem; feeling of inadequacy; lack of self-confidence.

noun

1. psychiatry a disorder arising from the conflict between the desire to be noticed and the fear of being humiliated, characterized by aggressiveness or withdrawal into oneself

n.

1. A persistent sense of inadequacy or the tendency to diminish oneself, sometimes resulting in excessively aggressive behavior through overcompensation.