—adj.
1 a moderately good (esp. fair to middling). b colloq. (of a person's health) fairly well. c second-rate.
2 (of goods) of the second of three grades.
—n. (in pl.) middling goods, esp. flour of medium fineness.
—adv. fairly or moderately (middling good).
Derivatives:
middlingly adv.
Etymology: ME, of Sc. orig.: prob. f. MID(1) + -LING(2)
Useful english dictionary. 2012.