The term 'REALLY BOTHER' can be broken down into seven crossword solutions: HARASS (6 letters), VEX (3 letters), ANNOY (5 letters), MOLEST (6 letters), NAGAT (5 letters), IRK (3 letters), and EATAT (5 letters). Each of these words can be used to describe the act of causing someone distress or irritation. HARASS, for example, is defined as to subject someone to aggressive pressure or intimidation. VEX means to cause someone to feel frustrated or confused. ANNOY is to cause someone to feel mildly irritated. MOLEST is to subject someone to unwanted sexual advances. NAGAT is to persistently criticize or complain about something. IRK is to cause someone to feel annoyed or bored. Finally, EATAT is to cause someone to feel distressed or worried. All of these words can be used to describe the act of really bothering someone.