perturbed -
Feeling unsettled, anxious, or troubled due to confusion, concern, or disruption.
She was visibly perturbed when she found out her flight had been canceled at the last minute.
adjective
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unnerving -
Disturbing or upsetting in a way that makes someone feel anxious or afraid, sometimes leading to a loss of courage, confidence, or composure.
It was an unnerving experience walking alone in the empty and unused area under the highway.
verb
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falter -
To lose strength or momentum; to weaken or stumble; to hesitate in action, purpose, or speech.
Her voice began to falter as she delivered the emotional speech.
adjective
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insecure -
Lacking confidence or self-assurance; feeling unsure about oneself.
When the disease caused blotches on her face, she felt insecure whenever she was with people.
adjective
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temperamental -
Liable to sudden changes in mood or behavior; unpredictable in temperament.
His temperamental nature and frequent outbursts made it hard for the team to rely on him during stressful situations.
adjective
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defensive -
To put oneself in a position that is intended to protect oneself.
One of the challenges of a therapist is to achieve the trust of the patient, and overcome the patient's defensive behavior.
verb
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gnaw -
To cause continual distress or discomfort, often in a mental or emotional sense.
Doubts about her decision started to gnaw at her, making it hard to focus.
adjective
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frenetic -
Fast and energetic in a rather wild and uncontrolled way
Every James Bond movie features a frenetic car chase that has the audience on the edge of their seats.
adjective
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touchy -
Easily offended or sensitive to criticism or comments.
Be careful what you say—he’s really touchy about his artwork.
noun
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tenterhooks -
Waiting nervously for something to happen.
After the weeklong trial, we were on tenterhooks waiting for the jury to give its verdict.
adjective
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flustered -
Agitated or confused
Studying quantum mechanics was difficult for Tom because all it did was make him confused and flustered.
adjective
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agitated -
Emotionally upset or excited, especially due to worry or anger.
His voice grew louder and more agitated as he explained what he was feeling.
