That makes one troubled or uneasy; disquieting or distressing.(adjective)
Present participle of unsettle.(verb)
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Use "unsettling" in a sentence
"Really good shrink-lit will indicate in unsettling ways the very fine dividing line between mental health and illness, will provoke genuine compassion for the struggles of the wounded to heal themselves and might just provide some compelling evidence for all those who would rather deny the power and impact of the darker regions of the mind."
"What makes it unsettling is the knowledge that innocent men's lives have been destroyed there."
"I agree that unsettling is the perfect adjective to qualify Joyce Carol Oates. .she manages to both really disturb me and make me come back for more."