expeditiousness vs expedition

expeditiousness and expedition both are nouns.

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

As nouns, expeditiousness and expedition are synonyms defined as:

expeditiousness and expedition: the property of being prompt and efficient

Other synonyms of expeditiousness include despatch, dispatch.

expeditiousness (noun)	expedition (noun)
the property of being prompt and efficient	a journey organized for a particular purpose
	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