Adverb
extremely and sharply
in a shrill voice
Source: WordNetbitter cold Source: Internet
it was bitterly cold Source: Internet
she sang rather shrilly Source: Internet
A piercingly insightful, deeply felt meditation on loyalty and betrayal, love and fear, is a tour de force of profound humanity. Source: Internet
Chris started to scream the chorus piercingly high, the way Hiro had shown him, but something funny happened. Source: Internet
That is, while he has set the tale in a childhood that is sprinkled with elements from his own 1950s youth it is so piercingly authentic that I am certain that it will resonate with many looking back regardless of when they were a child. Source: Internet