Antonym: mercy. Similar words: merciless, mercilessly, superciliousness, aimlessness, lawlessness, artlessness, carelessness, uselessness. Meaning: ['mɜrsɪlɪsnɪs /'mɜːs-] 
n. 1. feelings of extreme heartlessness 2. inhumaneness evidenced by an unwillingness to be kind or forgiving.
n. 1. feelings of extreme heartlessness 2. inhumaneness evidenced by an unwillingness to be kind or forgiving. 
Random good picture Not show
1. His cruelty and mercilessness are shocking.
2. Here was manifested the whole mercilessness of the winter war .
3. But it is a mug's game to try to distinguish degrees of mercilessness in this novel.
4. However, get female soccer players on a field, and different characteristics emerge: bravery and mercilessness.
5. Others say Kim Jong-un, who holds a mid-level position in the National Defence Commission, has inherited his father's mercilessness.
6. Qiuniang's family background buries a seed of pessimism and mercilessness in her heart, she dares not to get love which as a matter fact is just what she longs for earnestly deep in mind.
More similar words: merciless, mercilessly, superciliousness, aimlessness, lawlessness, artlessness, carelessness, uselessness, fearlessness, restlessness, hopelessness, helplessness, lifelessness, recklessness, fecklessness, listlessness, ruthlessness, selflessness, homelessness, timelessness, tactlessness, colorlessness, noiselessness, powerlessness, tastelessness, worthlessness, senselessness, shamelessness, faithlessness, sleeplessness.