mildness

Concise Oxford English Dictionary © 2008 Oxford University Press:
mild/mʌɪld/

▶adjective

• 1 not severe, harsh, or serious.

  ■ (of weather) moderately warm.

  ■ not sharp or strong in flavour.

  ■ (of a medicine or cosmetic) acting gently.

• 2 not intense or extreme: mild surprise.

• 3 gentle and not easily provoked.

▶noun Brit. a kind of dark beer not strongly flavoured with hops.

– derivatives
mildish adjective,
mildly adverb,
mildness noun.

– origin OE milde, of Gmc origin.