Dull
Dull adjective - Lacking sharpness of edge or point.
Thin as a rail and dull are semantically related. In some cases you can use "Thin as a rail" instead an adjective "Dull".
Thin as a rail
Dull and thin as a rail are semantically related. Sometimes you can use "Dull" instead an adjective phrase "Thin as a rail".
Cite this Source
Thin as a rail and Dull. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/dull/thin_as_a_rail
Dull & Thin as a rail. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/dull/thin_as_a_rail>.
Thin as a rail or Dull. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/dull/thin_as_a_rail.