(transitive) To make not set.

Not set; not fixed or appointed. / Not mounted or placed in a setting. / Not set (broken bone) / Not planted. / uncongealed, unconsolidated (concrete, cement)

present participle of unset

Third-person singular simple present indicative form of unset

To remove plates, etc. from a table after a meal.

That makes one troubled or uneasy; disquieting or distressing.

present participle of unsettle

The weakening of some previously established system or norm.

simple past tense and past participle of unsettle

Disturbed, upset. / Not in a steady condition, uncertain, subject to change. / Not populated, having no settlers or other inhabitants. / Unpaid.