declinist /dɪˈklaɪnɪst/adjective 1noun 1forms 3 adjective1 •Believing in or tending towards declinism.Against a background of almost paralytic gloom and declinist talk, Vienna tried to take on Napoleon, breifly bhecked him at Aspern-Essling and then went down to absolute defeat at Wagram […]. — 2013 noun1 •A subscriber to declinism. formsdeclinists · more declinist · most declinist