The term 'not relaxed' can be described by several words, all of which have 6 or more letters. UNEASY (6 letters) is a feeling of discomfort or anxiety, while TAUT (4 letters) means stretched tight. RIGID (5 letters) and STIFF (5 letters) both refer to something that is hard and inflexible, and TENSE (5 letters) means to be in a state of nervousness or strain. Onedge (6 letters) is a feeling of being anxious or UNEASY, and VOLATILE (8 letters) means to be unpredictable or unstable. All of these words describe a state of not being relaxed.