1. [ adjective ] harshly ironic or sinister
Synonyms: grim black

"black humor" "a grim joke" "grim laughter" "fun ranging from slapstick clowning ... to savage mordant wit"

Related terms: sarcastic
2. [ noun ] (color) a substance used to treat leather or other materials before dyeing; aids in dyeing process
Related terms: coloring_material tartar_emetic sodium_dichromate chrome_alum
Similar spelling:   Mordan