тщеславен означава в английски

vain [vainer, vainest]▼(overly proud of one's appearance)
adjective
[UK: veɪn] [US: ˈveɪn]

vainglorious▼(with excessive vanity or unwarranted pride)
adjective
[UK: veɪn.ˈɡlɔː.rɪəs] [US: veɪn.ˈɡlɔː.rɪəs]