had been stiffing

• past perfect progressive

  past perfect progressive

  Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.

  of stiff.
  stiff

  adjective

  rigid or firm; difficult or impossible to bend or flex.

Related Words

• brisk
• excessive
• extreme
• hard
• harsh
• heavy
• rigorous
• sharp
• steep
• strict
• stringent
• strong
• vigorous