Definition of "mild"

I corralled the judge, and we started off across the fields, in no very mild state of fear of that gentleman's wife, whose vigilance was seldom relaxed. And thus we came by a circuitous route to Mohair, the judge occupied by his own guilty thoughts, and I by others not less disturbing.

1897 December (indicated as 1898), Winston Churchill, chapter VIII, in The Celebrity: An Episode, New York, N.Y.: The Macmillan Company; London: Macmillan & Co., Ltd.

I learn that mental retardation is classified in four levels: mild, moderate, severe, and profound.

2002, Rachel Simon, Riding the Bus with My Sister: A True Life Journey

NPDR can be further classified as mild, moderate, severe, or very severe, which can help predict how quickly the patient may progress to proliferative (neovascular) diabetic retinopathy (PDR).

2003, Janice A. Gault, Ophthalmology Pearls

'Let me get this for the lady,' I said to Fange, who was pulling her a pint of mild.

1998, Robert Rankin, The Dance of the Voodoo Handbag, page 112

But Stella shouldn't really be drunk in pints the same way our dads used to drink bitter or mild that was effectively half as strong.

2011, Pete Brown, Three Sheets to the Wind