Final answer:
The term describing the 20th-century German Expressionist art movement known for bold landscapes and portraits is 'Die Brücke' (The Bridge), a key part of the Expressionist movement that emphasized emotion over realistic representation.
Step-by-step explanation:
The term that describes the 20th-century German Expressionist art movement that consists of bold landscapes and portraits is Die Brücke (The Bridge). This movement is characterized by artwork that is intense and emotive, where artists painted their feelings rather than reproducing the visible world. Leaders of the Expressionist movement like Ernst Ludwig Kirchner were involved in Die Brücke, which, along with Der Blaue Reiter (The Blue Rider), were the two dominant groups within German Expressionism. These groups utilized a distortion of form and bold use of colors to convey the internal emotional states of the artists.