with a guilt conscience;afraid of being found out; lacking in self-confidence;diffident
心虛
?afraid of being found out;with a guilty conscience; nervous
?lacking in selfconfidence;timorous;diffident
做賊～。A thief is bound to be nervous.or:A thief has a guilty conscience.or:A guilty conscience is a self-accuser./理虧～ feel apprehensive for not being on solid ground;have a guilty conscience
心虛xīn xū
?cardiac asthenia; heartdeficiency
?asthenia of cardiac qi;deficiency of heart-qi