conservative
US /kənˈsɝː.və.t̬ɪv/
UK /kənˈsɝː.və.t̬ɪv/

1.
a person who is averse to change or innovation and holds traditional values and attitudes
:
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My grandfather is a staunch conservative.
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The new policy was opposed by many conservatives.
1.
holding to traditional attitudes and values and cautious about change or innovation
:
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She has very conservative views on education.
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He prefers to dress in a more conservative style.