cuttingly

Concise Oxford English Dictionary © 2008 Oxford University Press:
cutting/ˈkʌtɪŋ/

▶noun

• 1 a piece cut off from something.

  ■ Brit. an article or other piece cut from a newspaper.

  ■ a piece cut from a plant for propagation.

• 2 Brit. an open passage excavated through higher ground for a railway, road, or canal.

▶adjective

• 1 capable of cutting.

• 2 (of a remark) hurtful.

– derivatives
cuttingly adverb.