enormous UK /ɪˈnɔː.məs/US /ɪˈnoɹ.məs/ adjective3 •very big, much bigger than usualThe enormous Jupiter is the largest planet in the Solar System. •(no longer used) Exceedingly wicked; atrocious or outrageous.how apt wee are to receive all impressions, and chiefly the most wicked and enormous. — 1603 •(no longer used) Deviating from the norm; unusual, extraordinary.all shall be rather enforced than hindered, except they be dismembered, or grievously deformed, infirm, or visited with some enormous hereditary disease is body or mind […]. — 2001 formsmore enormous · most enormous