The Vocalibrate dictionary

egregious

/ɪˈɡridʒəs/adjective

shockingly bad and obvious

Leaving the patient alone for hours was an egregious error.

Near in meaning: flagrantglaringoutrageousblatant
In the family: egregiouslyegregiousness

More words worth knowing

idiosyncraticpeculiar to one person; unlike anyone else's liminalin between two stages, states or places diminutiveextremely small virilestrong, energetic, and manly visceralfelt deeply in the body, as instinct rather than thought acerbicsharp and harsh in a witty or critical way