tricky

The most effective changes might also be the trickiest.

It is notoriously a tricky place for England to play rugby.

Castillo Deball also relishes collaborating with the team of specialized workers employed to assist her in pouring — and taming — the tricky cement.

Rodgers was equally complimentary after yet another critical contribution, one which drew the danger from a potentially tricky cup tie with an in-form Hibs.

The 29-year-old has also endured a tricky pregnancy, with nausea and vomiting extending into her second trimester.