Small in size, degree, or amount: a slight tilt; a slight surplus. Lacking strength, substance, or solidity; frail: a slight foundation; slight evidence. Of small importance or consideration; trifling: slight matters. Small and slender in build or construction; delicate. To treat as of small importance; make light of. To treat with discourteous reserve or inattention. To do negligently or thoughtlessly; scant. The act or an instance of slighting. A deliberate discourtesy; a snub: "It is easier to recount grievances and slights than it is to set down a broad redress of such grievances and slights\u201d ( Elizabeth Kenny).