More grimy; comparative form of grimy, meaning dirtier or covered with more grime.
Grimy + -er (comparative suffix). Grimy itself comes from grime + -y (adjective suffix).
Your hands are actually grimier in winter than summer—not just because you touch dirty things more, but because cold weather makes oils on your skin trap dirt particles more effectively.
Complete word intelligence in one call. Free tier — 50 lookups/day.