[ green-hawrn ]
/ ˈgrinˌhɔrn /


an untrained or inexperienced person.
a naive or gullible person; someone who is easily tricked or swindled.
Slang. a newly arrived immigrant; newcomer.

Origin of greenhorn

1425–75; late Middle English; see green, horn; orig. applied to cattle with green (i.e., young) horns

Related forms

green·horn·ism, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for greenhorn

British Dictionary definitions for greenhorn


/ (ˈɡriːnˌhɔːn) /


an inexperienced person, esp one who is extremely gullible
mainly US a newcomer or immigrant

Word Origin for greenhorn

C17: originally an animal with green (that is, young) horns
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012