Dangerouser

For error and mistake, the less th' appear, / In th' end are found to be the dangerouser; / As no man minds those clocks that used to go / Apparently too over-fast or slow.

Source: wiktionary

"—and de letter say: 'It's getting dangerouser and dangerouser every minute over where de fighting is at.'"

Source: wiktionary

“Oh jeez, if it isn't dangerous and dangerouser.” Sandy Sandburg, the sheriff of Campbell County, pulled out a chair, sat at our table, and propped up a large manila folder on the windowsill beside him, careful to pick a spot where the condensation wouldn't do any damage.

Source: wiktionary