what is the antonym of the word petition?

[Pion]

English Language Tests, Intermediate level

ESL/EFL Test #216 "Antonyms (2)", question 6

After a grueling and busy week at work, the stillness of the pond reminded Lara of the silence she'd been searching for since Monday. What is an antonym of 'stillness'? .........

(a) uproar
(b) tranquility
(c) serenity
(d) tameness

English Language Tests, Intermediate level

ESL/EFL Test #216 "Antonyms (2)", answer 6

After a grueling and busy week at work, the stillness of the pond reminded Lara of the silence she'd been searching for since Monday. What is an antonym of 'stillness'? uproar

Correct answer: (a) uproar
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what is the antonym of the word petition?

Pion

[Mister Micawber]

.
There is none.
.
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Native English teacher at Mister Micawber's