The term 'bigger than big' can be described by a variety of words, all of which have seven or more letters. These words include IMMENSE, EPIC, GIANT, OBESE, ENORMOUS, MAMMOTH, HUGE, and JUMBO. IMMENSE means extremely large in size or degree, while EPIC refers to something heroic or grandiose. GIANT is an adjective used to describe something that is much larger than usual, and OBESE is an adjective used to describe someone who is very overweight. ENORMOUS means extremely large in size or amount, and MAMMOTH is an adjective used to describe something that is very large. HUGE means very large in size or amount, and JUMBO is an adjective used to describe something that is exceptionally large.