The term 'very sensitive' can be described by three crossword solutions: ACUTE (5 letters), KEEN (4 letters), and RAW (3 letters). ACUTE means having a sharp perception or insight, while KEEN implies having a sharpness of mind or discernment. RAW is used to describe something that is unrefined or untempered. All three words are used to describe something that is very sensitive, meaning it is highly responsive to external stimuli.