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Causing difficulty or annoyance,
Causing difficulty or annoyance
difficult to deal with; "a troublesome infection"; "a troublesome situation"
(troublesomeness) a difficulty that causes anxiety
Giving trouble or anxiety; vexatious; burdensome; wearisome
a threshold concept may be far from ‘common sense’ understandings of the world and thus initially very difficult for learners to accept. ...
(adjective) -- causing problems, usually for others ch. 9
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