The term UNPREDICTABLE SORT is composed of three words: NUT (3 letters), ROGUE (5 letters), and LOOSECANNON (11 letters). A NUT is a small, hard-shelled fruit, while a ROGUE is someone who behaves in an unpredictable or dangerous way. A loose cannon is an idiom used to describe someone who is uncontrollable and unpredictable. Together, these words create a phrase that describes someone or something that is unpredictable and difficult to control.