fuddy-duddy

English Thesaurus

1. a conservative who is old-fashioned or dull in attitude or appearance (noun.person)

hypernym	:	conservative, conservativist,
definition	:	a person who is reluctant to accept changes and new ideas (noun.person)

domain usage	:	colloquialism,
definition	:	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech (noun.communication)