preoccupied
adjective C1- Concerned with something else; distracted; giving one's attention elsewhere. · I was preoccupied with a deadline at work, and I forgot his birthday.
- Describing a taxonomic name not available for use because it is already used for another.
From the library
I had observed some newspaper comment at the time, but I was exceedingly preoccupied by that little affair of the Vatican cameos, and in my anxiety to oblige the Pope I lost touch with several interesting English cases.
However, the man is fortunately rather deaf, and he was entirely preoccupied in that which he was doing.
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