vacillate

From Latin vacillātum, supine form of vacillō (“sway, waver”).

• IPA^(key): /ˈvæ.sə.leɪt/, /ˈvæ.sɪ.leɪt/

• Audio (US):

  (file)

vacillate (third-person singular simple present vacillates, present participle vacillating, simple past and past participle vacillated)

1. (intransitive) To sway unsteadily from one side to the other; oscillate.
   • 1910, Jack London, The Heathen:

     Its [the barometer's] normal register in the Paumotus [the Tuamotus] was 29.90, and it was quite customary to see it vacillate between 29.85 and 30.00, or even 30.05; […]

2. (intransitive) To swing indecisively from one course of action or opinion to another.
   • 1842, [anonymous collaborator of Letitia Elizabeth Landon], chapter XXIX, in Lady Anne Granard; or, Keeping up Appearances. […], volume II, London: Henry Colburn, […], →OCLC, page 68:

     Courageous, patriotic, yet vacillating, many of the noblest principles and the purest intentions, men of large possessions and ancient names, under the afflicting circumstances of the times, failed to render service to their unhappy country, but involved themselves in irremediable ruin.

   • 1944 October, I. A. Horowitz, “Readers' Games”, in Chess Review:

     Though it is vital to be alert for circumstances which require a change of plan, it is fatal to vacillate.

   • 2004, Chris Wallace, Character: Profiles in Presidential Courage:

     On the streets of Berlin, Ruth and her compatriots vacillated "between hope and despair."

• (to sway from one side to the other): stagger
• (to swing indecisively): blow hot and cold, waffle

• “vacillate”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• “vacillate”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
• “vacillate”, in OneLook Dictionary Search.

• cavatelli, laticlave

vacillate

1. inflection of vacillare:
   1. second-person plural present indicative
   2. second-person plural imperative

vacillate f pl

1. feminine plural of vacillato

• cavillate, vellicata

vacillāte

1. second-person plural present active imperative of vacillō