itchy feet vs wanderlust

itchy feet and wanderlust both are nouns.

Word	Noun	Adjective	Verb	Adverb
itchy feet	Yes	No	No	No
wanderlust	Yes	No	No	No

As nouns, itchy feet and wanderlust are synonyms defined as:

itchy feet and wanderlust: very strong or irresistible impulse to travel

itchy feet (noun)	wanderlust (noun)
very strong or irresistible impulse to travel	very strong or irresistible impulse to travel