WordWeb Online

1. Thickly covered with ingrained dirt or soot
   "a miner's begrimed face"
   - dingy, grimy, grubby, grungy, raunchy [US]

1. Make soiled, filthy, or dirty
   "don't begrime your clothes when you play outside!"
   - dirty, soil, grime, colly [archaic], bemire [archaic]

See also: dirty, soiled, unclean

Type of: alter, change, modify