abrasively
adv. C1 Advanced abra·sive·ly
adv. in a way that causes damage or irritation by rubbing against something. It can also describe speaking or acting in a way that is very harsh or rude.
adv. in a manner that causes wear, damage, or irritation through friction; alternatively, in a manner that is harsh, rude, or offensive.
The sandpaper scratches the wood abrasively.
He spoke abrasively to the staff, making them feel uncomfortable and unwelcome in their own workplace.
The abrasive nature of the debate eventually led to a complete breakdown in communication between the two political factions, as neither side was willing to yield on their core principles.
From abrasive + -ly.