The term 'How Low Can You Go' can be summarized by two crossword solutions: 'NADIR' (5 letters) and 'Rockbottom' (10 letters). NADIR is an Arabic word meaning 'lowest point' and is often used to refer to the lowest point of a person's fortunes. Rockbottom is a phrase that means the same thing as NADIR, but is more commonly used in English. Both terms refer to the lowest possible point or situation one can find themselves in.