The phrase "substantial headway" means making significant progress or achieving a large amount of advancement towards a goal or objective.
Sentences with «substantial headway»
However, Petrobras made substantial headway during the year to solve its problems. (fool.com)
It has also made substantial headway with its North Asia business, increased advisory and DPM penetration rates markedly, and grown average monthly revenues over 15 times since the acquisition. (asianprivatebanker.com)
There is more work to be done, but we know enough now to make substantial headway on this global environmental issue. (scientificamerican.com)