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to draw back; to sink; to cave in
to be set back (e.g. from a road)
to withdraw (e.g. from the public eye); to retire to (somewhere); to stay indoors; to butt out; to stay out of it
薬を塗ったら腫れが引っ込んできた。
After applying medicine, the swelling has gone down.
外は雨が降っているので今日は家に引っ込んでいる。
It's raining so I'm staying inside.
彼は田舎に引っ込んで暮らしている。
He has withdrawn to live in the countryside.