be inferior

See: lack
References in classic literature ?
I may be inferior to them, stupider perhaps, though I don't see why I should be inferior to them.
By contrast the judge alone in South Africa gave her verdict based on evidence; their legal system thus implied to be inferior to ours, she being judge and jury.
Further, testing by a leading consumer magazine has shown many of these parts to be inferior to original equipment manufacturer (OEM) parts in several key ways.