Meaning of 'turn someone off something' in this context

[Ljiljan Maksimovich]

English Language Tests, Intermediate level

ESL/EFL Test #199 "Phrasal Verbs (T)", question 9

Keira can't bear people who can't make up their minds and is ......... by procrastinators.

(a) turned in
(b) turned up
(c) turned off

English Language Tests, Intermediate level

ESL/EFL Test #199 "Phrasal Verbs (T)", answer 9

Keira can't bear people who can't make up their minds and is turned off by procrastinators.

Correct answer: (c) turned off

Your answer was: correct
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I know that turn someone off something means to make somebody loses his interest in something. What does it mean in this context!

Thanks
Ljiljan

[Mister Micawber]

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turn off = cause to feel intense dislike or distaste.

I recommend ONE LOOK DICTIONARY SEARCH, Ljiljan.
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Native English teacher at Mister Micawber's