unsettle

From un- +‎ settle.

• IPA^(key): /ʌnˈsɛtəl/

• Audio (Southern England):

  (file)

unsettle (third-person singular simple present unsettles, present participle unsettling, simple past and past participle unsettled)

1. To make upset or uncomfortable

   Synonyms: disturb, perturb; see also Thesaurus:upset

   Antonyms: comfort, relieve, settle

   Don't unsettle the horses or they'll bolt.

   • 2012 May 9, Jonathan Wilson, “Europa League: Radamel Falcao's Atlético Madrid rout Athletic Bilbao”, in the Guardian‎^[1]:

     Athletic have been showing signs of fatigue domestically and they never quite seemed to reach the same pitch of intensity that had so unsettled Manchester United and Schalke 04 in earlier rounds.

2. To bring into disorder or disarray

   Synonyms: betumble, derange, disarrange, discompose, displace, disrange, ruffle up

   Antonyms: array, order, settle

• lunettes, tunelets