synaesthetic vs synesthetic

synaesthetic and synesthetic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
synaesthetic	No	Yes	No	No
synesthetic	No	Yes	No	No

As adjectives, synaesthetic and synesthetic are synonyms defined as:

synaesthetic and synesthetic: relating to or experiencing synesthesia; involving more than one sense

synaesthetic (adjective)	synesthetic (adjective)
relating to or experiencing synesthesia; involving more than one sense	relating to or experiencing synesthesia; involving more than one sense