adjective

unclean

un-KLEEN/ˌʌnˈkliːn/

Contaminated or lacking cleanliness.

The unclean plate and fork are coated with grime.

A visibly filthy plate and fork beside a crumpled, stained dishcloth: dried food, greasy smears, and embedded grime make physical uncleanliness immediately recognizable.
Etymology

Negating clæne denied purity, not just freedom from dirt. Unclean already described moral or ceremonial impurity in Old English; the recorded sense of being physically dirty came later.

In context

Gardener Scott1:20
dirt is unclean there's no life in it whereas soil is important soil is something that we grow in
Understanding Soil (The Key to Success)

More examples

  • Unclean drinking water can spread disease.
  • Wash any unclean utensils before preparing food.
  • Their religious rules classify certain foods as unclean.

Forms

unclean · uncleaner · uncleanest

uncleanliness noun — The condition of being dirty or unsanitary.

Similar words

dirty
Describes visible dirt without necessarily implying health risks.
unsanitary
Emphasizes conditions that can spread disease or harm health.
impure
Suggests contamination or failure to meet religious purity rules.