The term 'on edge' is used to describe a feeling of unease, anxiety, or tension. The crossword solutions for this term include FIDGETY (7 letters), ANTSY (5 letters), ITCHY (5 letters), JUMPY (5 letters), TENSE (5 letters), TESTY (5 letters), UNEASY (6 letters), ANXIOUS (7 letters), Endwise (7 letters), JITTERY (7 letters), NERVOUS (7 letters), RESTIVE (7 letters), SKITTISH (8 letters), Illatease (9 letters), and Nailbiting (10 letters). All of these words are used to describe a feeling of being on edge, which can be caused by a variety of factors such as stress, fear, or anticipation.