Unfavorableness and Unpropitiousness

Unfavorableness noun - The quality of not being encouraging or indicative of success.

Unpropitiousness and unfavorableness are semantically related. In some cases you can replace term "Unpropitiousness" with "Unfavorableness", this nouns are similar.

Unpropitiousness noun - The quality of suggesting an unsuccessful result.

Unfavorableness and unpropitiousness are semantically related. You can use "Unfavorableness" instead a noun "Unpropitiousness".