abstractedly

George Orwellの小説 1984を読んでいます。
'What happened to the man?' said Winston.

Ah, that I couldn't say, of course. But I wouldn't be altogether surprised if ' Parsons made the motion of aiming a rifle, and clicked his tongue for the explosion.

'Good,' said Syme abstractedly, without looking up from his strip of paper.

"abstract" からは抽象的な（もの）とか要約などの意味しか思い浮かばないので、動詞でも抽象化するとか、要約するを連想します。 "abstractedly" と副詞になるとどの様な意味になるのか分かりません。辞書を見ます。辞書には副詞での説明はないので、形容詞の "abstracted" を見ます。
・Oxford English Dictionary: Showing a lack of concentration on what is happening around one.: She seemed abstracted and unaware of her surroundings.

・Collins Dictionary: Someone who is abstracted is thinking so deeply that they are not fully aware of what is happening around them.: Meg was so abstracted she scarcely noticed that the train had stopped.

・Cambridge English Dictionary: not giving attention to what is happening around you because you are thinking about something else: He gave her an abstracted glance, then returned to his book.
なるほど、何か他の事を考えていてうわの空なのですね。
咳と微熱が2週間以上続き難渋しています。明後日の１０kmランまでに治って欲しい。