Another word for sturdily

The miller sturdily refused to sell it.

He had no sympathy with John's high-church tendencies on the one hand, and he sturdily resisted all the king's endeavours to restrict his authority as duke of Sodermanland (Sudermania) on the other.

Otherwise, the stand is sturdily built in steel - the vertical strut being square section.

The litter cabinet is typically a sturdily designed piece of furniture that, when well-crafted, looks pleasant within the home and remains virtually undistinguishable from ordinary furniture.

Furthermore, the toy should be sturdily sewn and if possible, repaired or discarded as soon as the dog begins to mangle it.