expedition vs rapidness

expedition and rapidness both are nouns.

Word	Noun	Adjective	Verb	Adverb
expedition	Yes	No	No	No
rapidness	Yes	No	No	No

As nouns, rapidness is a hypernym of expedition; that is, rapidness is a word with a broader meaning than expedition:

Other hypernyms of expedition include celerity, quickness, rapidity, speediness.

expedition (noun)	rapidness (noun)
a journey organized for a particular purpose	a rate that is rapid
a military campaign designed to achieve a specific objective in a foreign country
a journey taken for pleasure
the property of being prompt and efficient
an organized group of people undertaking a journey for a particular purpose