tripper vs sightseer

tripper and sightseer both are nouns.

Word	Noun	Adjective	Verb	Adverb
tripper	Yes	No	No	No
sightseer	Yes	No	No	No

As nouns, tripper and sightseer are synonyms defined as:

Other synonyms of tripper include excursionist, rubberneck.

tripper (noun)	sightseer (noun)
a catch mechanism that acts as a switch	a tourist who is visiting sights of interest
a tourist who is visiting sights of interest
a walker or runner who trips and almost falls
(slang) someone who has taken a psychedelic drug and is undergoing hallucinations