third-dimensional vs 3-dimensional

third-dimensional and 3-dimensional both are adjectives.

Word	Noun	Adjective	Verb	Adverb
third-dimensional	No	Yes	No	No
3-dimensional	No	Yes	No	No

As adjectives, third-dimensional and 3-dimensional are synonyms defined as:

third-dimensional and 3-dimensional: involving or relating to three dimensions or aspects; giving the illusion of depth

Other synonyms of third-dimensional include three-d, three-dimensional.

third-dimensional (adjective)	3-dimensional (adjective)
involving or relating to three dimensions or aspects; giving the illusion of depth	involving or relating to three dimensions or aspects; giving the illusion of depth