Based on the notion that approach-avoidance underlies impression formation processes and that approach-avoidance is more directly based on appraisals of others' morality (M) than competence (C), we hypothesized that M-related information played a more important role at various phases of global impression formation than C-related information on target persons. In four studies (N = 342 university students), we predicted and found that (a) M traits showed a higher chronic accessibility than C traits; (b) when gathering information to formulate a global impression, perceivers were more interested in M traits than C traits; (c) global impressions of real persons were better predicted from M trait ascriptions than C trait ascriptions, and (d) positivity-negativity of impressions of fictitious persons was decided mainly by the M content of their behavior, whereas C information served as a weak modifier of impression intensity. The dominance of M traits over C traits was more pronounced for female perceivers than for male perceivers.