1. Worthless; bad.
2. Weak; slight; unsubstantial; poor; as, a slim argument. That was a slim excuse.
3. Of small diameter or thickness in proportion to the height or length; slender; as, a slim person; a slim tree.
Origin: Formerly, bad, worthless, weak, slight, awry, fr. D. Slim; akin to G. Schlimm, MHG. Slimp oblique, awry; of uncertain origin. The meaning of the English word seems to have been influenced by slender.