open problem

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|sciences}} A [[problem]] that has been [[pose]]d in a [[field]] of [[study]] such as [[mathematics]] or [[theoretical]] [[computer science]], but whose [[answer]] is not yet [[know]]n.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.