Slightest meaning : To treat as unimportant or not worthy of attention; to make light of. To give lesser weight or importance to. To treat with disdain or neglect, usually out of prejudice, hatred, or jealousy; to ignore disrespectfully. To act negligently or carelessly. (of a fortification) To render no longer defensible by full or partial demolition. To make even or level. To throw heedlessly. Small Of slender build Even, smooth or level (especially said of the swa) still; with little or no movement on the surface Foolish; silly; not intellectual. Bad, of poor quality. Slighting; treating with disdain.