soldiering vs slacking

soldiering and slacking both are nouns.

Word	Noun	Adjective	Verb	Adverb
soldiering	Yes	No	No	No
slacking	Yes	No	No	No

As nouns, soldiering and slacking are synonyms defined as:

Other synonyms of soldiering include goldbricking, goofing off, shirking.

soldiering (noun)	slacking (noun)
the evasion of work or duty	the evasion of work or duty
skills that are required for the life of soldier