The phrase "woefully bad" is correct and can be used in written English.
It is typically used to describe something that is very bad in a sad or disappointing way. Example: The team's performance was woefully bad, leading to their loss in the championship game.
Even those who credit him for hiring teachers say the quality of education remains woefully bad.
In short, we hold nothing in higher esteem than freedom, but we are woefully bad at being free.
The ramshackle structure created by the army perpetuated its power and privileges, but was woefully bad at almost everything else.
Across the woefully bad education system a focus is needed on excellence in teaching and standards easing the way for more private providers.
Investment performance Cowie asks why, even after taking into account the amount taken out for insurance and fees, NU/Aviva's performance has been so "woefully" bad?
Mere mortals, as opposed to infallible computers, are woefully bad at keeping track of the ebb and flow of words, especially the tiny, stealthy ones that most interest Pennebaker.
For two years, President Enrique Peña Nieto's government has argued that the tests are the lynchpin of the constitutional reform, because they will eventually weed out bad teachers from Mexico's woefully underperforming schools.
Schappell's boys are woefully ill prepared to play in the bad-girl leagues.
In the first act they were woefully out of sync; whether a matter of bad timing or a lack of strength, their ragged dancing was palpable.
"We are all broken bad and desperately in need of redemption, but woefully unable to extricate ourselves from the dire circumstances of our lives.
The loving tribute on Monday's 58th Grammy Awards posthumously manifested the music industry's admiration for his artistry, but it also served as a reminder of the bad old days when the Grammys were often woefully out of touch with the most innovative music coming out of the world of pop, rock, R&B, country, jazz and classical music.
