IPA: /ˈsmʌdʒi/
KK: /smʌdʒi/
Having marks or stains that make something unclear or dirty.
The child's hands were smudgy after playing with the paint.
Comparative: smudgier
Superlative: smudgiest
Smudgy → It is formed from "smudge" (of uncertain origin, possibly from Middle English *smudgen*, meaning to smear or stain) and the suffix "-y" (meaning characterized by). The word "smudgy" describes something that is characterized by smudges or stains.
Think of something that is 'characterized by' a smear or stain — that's what 'smudgy' means.