have been shrilling

• present perfect progressive

  present perfect progressive

  Used to describe an action that began in the past, has continued continuously, and is still in progress.

  of shrill.
  shrill

  adjective

  high-pitched and piercing in sound quality.

Related Words

• deafening
• discordant
• earsplitting
• noisy
• piercing
• raucous
• sharp
• strident