Synonym: Byzantine, baffling, convoluted, gnarled, gnarly, involved, knobbed, knotted, problematic, problematical, snarled, snarly, tangled, tortuous, tough. Similar words: dotty, potty, knotted, nitty-gritty, patty, witty, petty, fatty. Meaning: ['nɑtɪ /nɒ-] 
adj. 1. making great mental demands; hard to comprehend or solve or believe 2. used of old persons or old trees; covered with knobs or knots 3. highly complex or intricate 4. tangled in knots or snarls.
adj. 1. making great mental demands; hard to comprehend or solve or believe 2. used of old persons or old trees; covered with knobs or knots 3. highly complex or intricate 4. tangled in knots or snarls. 
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1. She met with a lot of knotty problems.
2. The new management team faces some knotty problems.
3. That's rather a knotty question.
4. Flying is at the heart of this knotty problem.
5. It was a knotty mass of blue and black tissue - final proof of Dowd's inhumanity.
6. STUMPER a stumper . A knotty problem.
7. The foxed the arrogant instructor with a knotty problem.
8. Under his leadership, many knotty problems were smoothly solved.
9. He delights to worry out knotty points in English.
10. The trainee foxed the arrogant instructor a knotty problem.
11. We should think about another facet of this knotty problem.
12. Moreover, even when it does so,[sentencedict.com] there are knotty problems of obtrusiveness and privacy to be resolved before one could perform brain scans outside the laboratory.
13. The effect of turn-off current is a knotty problem in TEM method, especially for shallow soundings. Turn-off time is also a major parameter for evaluating the performance of instruments.
14. for example, the siding is a knotty western red cedar, which was stained rather than painted so that the knots and grain showed through.
15. The trainee foxed the arrogant instructor with a knotty problem.
16. He tackled the knotty problem without recourse to any help.
17. He had to discuss knotty points of Rousseau and Hegel with her.
18. Presently, piglet early weaning diarrhea is a knotty disease in most pig farm.
19. It has been a knotty problem to extract Au from arsenical polymetallic sulfides.
20. I have had many letters from knitters asking for help with knotty problems.
21. A capacity for burying problems made royal commissions and the like instantly attractive to politicians besieged by one knotty issue or another.
22. Selecting from publishers' catalogues throws up at least two knotty practical difficulties.
23. Night after night, all over the country(http://sentencedict.com), ordinary married couples must be wrestling with exactly this sort of knotty problem.
24. He was only small but he was wiry, with hard, knotty muscles.
25. And in fact patient research has gone a long way towards resolving this knotty problem.
26. In the course of time I began to get the best of this knotty lesson, and my self-complacency moved to the front once more. Mr.
27. In scientific English, there is an endless debate an apposition. According to the knotty problems, this article puts forward eight points of view.
28. Owing to connaturally cultural difference, barriers are of great ineluctability in translation, in which cultural lacuna is one of the most knotty ones.
29. He was scowling fearfully, and I judged that he was concocting a particularly knotty editorial.
30. Guthrie Garver, known as Gus , was a small, quiet , knotty man.
More similar words: dotty, potty, knotted, nitty-gritty, patty, witty, petty, fatty, ditty, pretty, gritty, pretty much, knot, known, know, knob, unknown, knock, knoll, known as, knowing, gettysburg address, know about, well known, well-known, knock off, knock out, knockoff, for all I know, knocking.