dull blade

• bluntDull or tactlessly direct
• edgeBoundary or sharpness
• knifeSharp cutting utensil
• rustyCorroded or unpracticed
• wornDamaged by use

honed · sharpen · whetstone · cutting · slice · hack · tear · jagged · steel · blade · serrated · grind · nick · useless · dented · old · metal · scrape

• Damaged Thingsbroken glass, broken window, cracked screen, shattered glass, shattered mirror
• shaving problemsrazor burn, nicks, cuts, ingrown hairs, razor bumps