Akademik

troubling
adjective
causing distress or worry or anxiety
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distressing (or disturbing) news

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lived in heroic if something distressful isolation

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a disturbing amount of crime

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a revelation that was most perturbing

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a new and troubling thought

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in a particularly worrisome predicament

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a worrying situation

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a worrying time

Syn: ↑distressing, ↑distressful, ↑disturbing, ↑perturbing, ↑worrisome, ↑worrying
Similar to: ↑heavy
Derivationally related forms: ↑distressfulness (for: ↑distressful)

Useful english dictionary. 2012.