"mildness" in the noun sense
1. mildness, clemency
good weather with comfortable temperatures
2. gentleness, softness, mildness
acting in a manner that is gentle and mild and even-tempered
"his fingers have learned gentleness"
"suddenly her gigantic power melted into softness for the baby"
"even in the pulpit there are moments when mildness of manner is not enough"
3. lenience, leniency, mildness, lenity
mercifulness as a consequence of being lenient or tolerant
Source: WordNet® (An amazing lexical database of English)
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