Unmerciful; severe: an unsparing superior officer; unsparing criticism. (adjective)
Not frugal; generous.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "unsparing" in a sentence
"DiCaprio, who has long been fascinated by Viking culture, will play one in a storyline that will be as "unsparing" as Gibson's other period directing efforts: Braveheart, Passion of the Christ and Apocalypto."
"The South's President Lee Myung-bak, during a visit to front-line troops Thursday, said that South Korea must make "unsparing" retaliation if it suffers another surprise attack."
"The South pledges "unsparing" retaliation, while the North threatens "sacred" nuclear war."