troubling

adj. worrying, causing concern; causing discomfort; disturbing

v. worry, cause concern; annoy; bother; cause discomfort; disturb

Adjective
1. causing distress or worry or anxiety; "distressing (or disturbing) news"; "lived in heroic if something distressful isolation"; "a disturbing amount of crime"; "a revelation that was most perturbing"; "a new and troubling thought"; "in a particularly worrisome predicament"; "a worrying situation"; "a worrying time"
(synonym) distressing, distressful, disturbing, perturbing, worrisome, worrying
(similar) heavy

Noun
1. a source of difficulty; "one trouble after another delayed the job"; "what's the problem?"
(synonym) problem
(hypernym) difficulty
(hyponym) can of worms
(derivation) put out, inconvenience, disoblige, discommode, incommode, bother
2. an angry disturbance; "he didn't want to make a fuss"; "they had labor trouble"; "a spot of bother"
(synonym) fuss, bother, hassle
(hypernym) perturbation, disturbance
3. an event causing distress or pain; "what is the trouble?"; "heart trouble"
(hypernym) happening, occurrence, natural event
(hyponym) misfortune, bad luck
(derivation) afflict, ail, pain
4. an effort that is inconvenient; "I went to a lot of trouble"; "he won without any trouble"; "had difficulty walking"; "finished the test only with great difficulty"
(synonym) difficulty
(hypernym) effort, elbow grease, exertion, travail, sweat
(hyponym) the devil
(derivation) trouble oneself, bother, inconvenience oneself
5. a strong feeling of anxiety; "his worry over the prospect of being fired"; "it is not work but worry that kills"; "he wanted to die and end his troubles"
(synonym) worry
(hypernym) anxiety
(derivation) perturb, unhinge, disquiet, cark, distract, disorder
6. an unwanted pregnancy; "he got several girls in trouble"
(hypernym) pregnancy, gestation, maternity
Verb
1. move deeply; "This book upset me"; "A troubling thought"
(synonym) disturb, upset
(hypernym) affect, impress, move, strike
(hyponym) agitate, rouse, turn on, charge, commove, excite, charge up
(derivation) worry
2. to cause inconvenience or discomfort to; "Sorry to trouble you, but..."
(synonym) put out, inconvenience, disoblige, discommode, incommode, bother
(hypernym) affect, impact, bear upon, bear on, touch on, touch
(derivation) problem
3. disturb in mind or make uneasy or cause to be worried or alarmed; "She was rather perturbed by the news that her father was seriously ill"
(synonym) perturb, unhinge, disquiet, cark, distract, disorder
(hypernym) disturb, upset
(hyponym) worry, vex
(derivation) worry
4. take the trouble to do something; concern oneself; "He did not trouble to call his mother on her birthday"; "Don't bother, please"
(synonym) trouble oneself, bother, inconvenience oneself
(hypernym) strive, reach, strain
(derivation) difficulty
5. cause bodily suffering to
(synonym) afflict, ail, pain
(hypernym) hurt
(hyponym) disagree with

(p. pr. & vb. n.)
of Trouble
  

troubling
  

duo1 yi2 shi4 bu4 ru2 shao3 yi2 shi4
The less trouble the better.
Avoiding trouble (or work) whenever possible.

mang2 ci4 zai4 bei4
A thorn in one's back.
Said of something that keeps troubling a person. To feel nervous and uneasy. A thorn in one's side.