in situ vs in-situ

in situ and in-situ both are adjectives.

Word	Noun	Adjective	Verb	Adverb
in situ	No	Yes	No	Yes
in-situ	No	Yes	No	No

As adjectives, in situ and in-situ are synonyms defined as:

in situ and in-situ: being in the original position; not having been moved

Other synonyms of in situ include unmoved.

in situ (adjective)	in-situ (adjective)
being in the original position; not having been moved	being in the original position; not having been moved

in situ (adverb)	in-situ (adverb)
in the original or natural place or site
in position