Similar words: stump, stumpy, stump up, stumping, stump speech, bumper-to-bumper, frustum, stumble. Meaning: ['stʌmpə(r)] 
n. a particularly difficult or baffling question or problem.
n. a particularly difficult or baffling question or problem. 
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1. STUMPER a stumper . A knotty problem.
2. That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.
3. For Claire Sulmers, a 27-year-old fashion blogger in New York, the stumper was an 'international' dress code.
4. The temporal problem in Geographical Information System (GIS) is a very important stumper to be solved. The Main difficulty in the problem is to construct a Spatio-Temporal Data Model (STDM).
5. This kind of classification that comes from the system of civil law has no actual senses to us. Our criminal code stipulation concerning fault can resolve the discernment stumper problem.
More similar words: stump, stumpy, stump up, stumping, stump speech, bumper-to-bumper, frustum, stumble, costume, costumed, costumer, datum point, stumble upon, quantum jump, dumper, lumper, humper, jumper, bumper, thumper, dumped, bumped, pumped, humped, plumper, lumpen, stumble across, slumped, trumpery, trumpet.