The term UNEMOTIONAL ONE can be summarized by two crossword solutions: ICICLE (6 letters) and STOIC (5 letters). An icicle is a frozen drop of water that hangs from the edge of a roof or other structure, and is often associated with coldness and lack of emotion. Similarly, a STOIC is someone who is indifferent to pleasure or pain, and is known for their emotional restraint. Both terms are used to describe someone who is unemotional and does not show their feelings.