dadaism vs art movement

dadaism and art movement both are nouns.

Word	Noun	Adjective	Verb	Adverb
dadaism	Yes	No	No	No
art movement	Yes	No	No	No

As nouns, art movement is a hypernym of dadaism; that is, art movement is a word with a broader meaning than dadaism:

dadaism: a nihilistic art movement (especially in painting) that flourished in Europe early in the 20th century; based on irrationality and negation of the accepted laws of beauty
art movement: a group of artists who agree on general principles

Other hypernyms of dadaism include artistic movement.

dadaism (noun)	art movement (noun)
a nihilistic art movement (especially in painting) that flourished in Europe early in the 20th century; based on irrationality and negation of the accepted laws of beauty	a group of artists who agree on general principles