attainment vs acquirement

attainment and acquirement both are nouns.

Word	Noun	Adjective	Verb	Adverb
attainment	Yes	No	No	No
acquirement	Yes	No	No	No

As nouns, attainment and acquirement are synonyms defined as:

attainment and acquirement: an ability that has been acquired by training

Other synonyms of attainment include accomplishment, acquisition, skill.

attainment (noun)	acquirement (noun)
the act of achieving an aim	an ability that has been acquired by training
arrival at a new stage
an ability that has been acquired by training