adjective
a word that describes or modifies a noun or pronoun, in this case 'unquelled' describes something that has not been subdued or overcome
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The protests were unquelled by the presence of law enforcement.
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Her determination to succeed was unquelled by any setbacks.
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The party was unquelled, everyone was having a great time.
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His passion for music was unquelled, even in the face of criticism.