The term 'more insignificant' can be described by the crossword solutions of 'SMALLER', 'punier', 'pettier', and 'MEANER'. All of these words refer to something that is less significant than something else. SMALLER refers to something that is physically SMALLER in size, punier refers to something that is weaker or less powerful, pettier refers to something that is more petty or trivial, and MEANER refers to something that is more unkind or cruel. Together, these words describe something that is even less significant than before.