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The opposite of ruthless
i.e. kind, merciful etc.
"Those charity workers are so ruthful"
by kiriati October 02, 2009
Being totally safe and against any dangerous or rebellious acts.

Antonyms: Ruthless
"Dude you should come out tonight!"

"Nah, I don't want to get into trouble"

"Thats totally ruthful bro."
by P-MO-SLICE January 11, 2010