5
sucker(noun, dupe)
4
dilettante(noun, amateur)
4
victim
3
callow
3
entrant
3
green
3
immature
3
naif(noun, person, recruit, novice, tenderfoot)
3
stooge(noun, mark, innocent, dupe, medium)
3
youthful
2
abecedarian(noun, person, start)
2
cull
2
dunce
2
fool
2
gull
2
pigeon
2
probationer
2
virgin(noun, person, innocent, recruit, novice)
2
innocent(noun, dupe, child)
2
new boy
11 years ago|7k views|share |citing 
APASmart Define. (2015). greenhorn thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/greenhorn/thesaurus/synonyms
ChicagoSmart Define. 2015. "greenhorn thesaurus" https://smartdefine.org/greenhorn/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, greenhorn thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/greenhorn/thesaurus/synonyms>.
MLASmart Define. "greenhorn thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/greenhorn/thesaurus/synonyms>