missing

verb

1. (form-of, gerund, participle, present)present participle and gerund of miss

adj

1. (not-comparable)Not able to be located; gone, misplaced.

   “my missing socks”

   “Forty three killed and 80 wounded in action with the Implacable. 180 killed and miſſing in action with the Centaur.”

   “She was so mad she wouldn't speak to me for quite a spell, but at last I coaxed her into going up to Miss Emmeline's room and fetching down a tintype of the missing Deacon man.”

2. (not-comparable)Not present when it (they) should be.

   “missing data point”

   “Joe went missing last year. He had all teeth missing when he was finally found.”

   “We've got some flatware missing - There seem to be some cooking utensils missing too!”

   “How likely is it that all the people who are described as missing are living together in a small town somewhere?”

3. (not-comparable)Of an internal combustion engine: running roughly due to an occasional lack of a spark or other irregular fault.

noun

1. A value that is missing.

   “The treatment of missings is a problem in statistical software.”

   “Patterns of missings across the whole data set are readily visible, but also patterns which only apply to small subgroups of cases.”