KanjiJLPT N1
Estranged

alienate, rough, neglect, shun, sparse, penetrate

Mnemonic

From the diving board, you spot your ex on the pool deck below. You stop cold — they're hauling a bundle of your belongings to the curb, tossing out every memory. You two are completely estranged now; every trace of you erased from their life.
Additional thoughts
Picture freezing atop the high dive, watching someone you once loved methodically bundling up your things. The height of the diving board mirrors the emotional distance that has grown between you.
Quick recall
You stop on the diving board, watching your ex toss a bundle of your stuff — totally estranged.

Details

The keyword for 疎 is estranged. This kanji conveys the sense of being distant, alienated, or sparse — a feeling of separation or lack of closeness between people or things. It can describe relationships that have grown apart, as well as things that are coarse, rough, or thinly scattered. The underlying idea is one of neglect or unfamiliarity, where connections have weakened or were never strongly formed.
On'yomi
そ、しょ
Kun'yomi
うと.い、うと.む、まば.ら