Crossword clues for Insignificant: Slang. 5 letters:DINKYSmall and insignificant: Slang.DINKYInsignificant: Slang.TWERPInsignificant fellow: Slang.TWIRPInsignificant one: Slang.TWERPInsignificant person: Slang.PIPSQUEAKSInsignificant people: Slang.PEANUTSInsignificant pay: Slang.