All 4 Uses

unsavory
in
Three Cups of Tea
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And his method of operation, hiring people with limited experience based on gut feelings, forging working alliances with necessarily unsavory characters, and, above all, winging it, while unsettling and unconventional, has moved mountains.†
Chpt Intr.
There was the unsavory product other unscrupulous merchants might sell.†
Chpt 6 *
As a hub for Pakistan's black-market economy, the city was filled with unsavory characters.†
Chpt 13
He'd read her defense of her practice of taking donations from unsavory sources, like drug dealers, corporate criminals, and corrupt politicians hoping to purchase their own path to salvation.†
Chpt 18

Definitions:

(1) (unsavory)
unpleasant or distasteful -- as from offensive morality or bad taste
(2) (meaning too rare to warrant focus)