The word found after unscrambling hottest means that used of physical heat; having a high or higher than desirable temperature or giving off heat or feeling or causing a sensation of heat or burning, characterized by violent and forceful activity or movement; very intense, extended meanings; especially of psychological heat; marked by intensity or vehemence especially of passion or enthusiasm, (color) bold and intense, sexually excited or exciting, recently stolen or smuggled, very fast; capable of quick response and great speed, wanted by the police, producing a burning sensation on the taste nerves, performed or performing with unusually great skill and daring and energy, very popular or successful, very unpleasant or even dangerous, newest or most recent, having or bringing unusually good luck, very good; often used in the negative, newly made, having or showing great eagerness or enthusiasm, of a seeker; very near to the object sought, having or dealing with dangerously high levels of radioactivity, charged or energized with electricity, marked by excited activity, .
