impasse meaning
EN
[ˈæmpɑːs12] [æmˈpɑːs2] [ˈɪmpɑːs2] [ɪmˈpɑːs2] [ˈɪmpæs3] [ɪmˈpæs3] WImpasse
- A bargaining impasse occurs when the two sides negotiating an agreement are unable to reach an agreement and become deadlocked.
- Some theorists contend that impasses are used by negotiating parties in situations of imperfect information as a method of signalling to the other side the seriousness of their position.
- Impasse may also arise if parties suffer from self-serving bias.
- As bargaining impasse is mutually harmful, it may be beneficial for the parties to accept binding arbitration or mediation to settle their dispute, or the state may impose such a solution.
FR impasse 
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Nouns
Source: Wiktionary
Grammatically, this word "impasse" is a noun, more specifically, a countable noun.