Fiendishly

Fiendishly difficult, the “Chaconne” is widely considered to be the pinnacle of violin music.

That serves to show how World Cups are fiendishly difficult to win, even with the best lead-ins.

Your work can be fiendishly complex.

According to WhatsApp, it’s because of a technical knot that’s fiendishly difficult to unpick.

It's fiendishly difficult but also utterly addictive, with nearly limitless combinations of possible outcomes to account for at all times.

Oxford and Cambridge are the only two universities allowed to enter the fiendishly difficult show with individual colleges.

They are fiendishly difficult to work with, in part because they are unbelievably tiny: about 10 nanometres across – not much wider than the helix of your DNA, and about as long as your fingernails grow in 10 seconds.

Because this is classical ballet in its purest form: regal, pinpoint precise, and, for its performers, fiendishly difficult and utterly exposing.

However, that race is fiendishly tricky and there are a couple of better betting opportunities on Sunday.

Johnson could argue this strengthens his hand with Brussels, but leading trade experts warn that international agreements are fiendishly complex and can take several years to conclude – an average of 48 months.

With no new ideas and gadgets that are fiendishly expensive.

As for that comment about the simplicity of the Finnish language, Guy rightly points out that it is fiendishly difficult to learn for almost anyone – that is other than Estonians.

Priming the chamber with coffee that is ground to the right size is fiendishly difficult and coffee should not be boiled.

There are also calls to cut or harmonise tax reliefs at 30%, which would benefit less well-paid savers, but it is fiendishly complex and could be politically disastrous among voters in Tory heartlands.

A Crichton book was a headlong experience driven by a man who was both a natural storyteller and fiendishly clever when it came to verisimilitude; he made you believe that cloning dinosaurs wasn't just over the horizon but possible tomorrow.