Lusterlessness and Torpidness

Lusterlessness noun - The property of having little or no contrast; lacking highlights or gloss.

Torpidness and lusterlessness are semantically related. In some cases you can use "Torpidness" instead a noun "Lusterlessness".

Torpidness noun - Inactivity resulting from lethargy and lack of vigor or energy.

Lusterlessness and torpidness are semantically related. Sometimes you can replace term "Lusterlessness" with "Torpidness", this nouns are similar.