Glaring

A Glare is a facial expression showing fierceness and hostility. Glaring, in some cultures is considered offensive. A glare may be induced by anger or frustration.

Sometimes, glaring is considered synonmymous to staring but, in most of the cases, staring is caused due to curiosity and lasts only for a short duration, whereas glaring is caused due to hostility and lasts for a relatively longer duration.