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Vacillate vs Undecide - What's the difference?

vacillate | undecide |

In lang=en terms the difference between vacillate and undecide

is that vacillate is to swing indecisively from one course of action or opinion to another while undecide is to reverse or recant (a previous decision).

As verbs the difference between vacillate and undecide

is that vacillate is to sway unsteadily from one side to the other; oscillate while undecide is to reverse or recant (a previous decision).

vacillate

English

Verb

(vacillat)
  • To sway unsteadily from one side to the other; oscillate.
  • * 1910:
    • 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; [...]
  • To swing indecisively from one course of action or opinion to another.
  • * 2004: , Character: Profiles in Presidential Courage
    • On the streets of Berlin, Ruth and her compatriots vacillated "between hope and despair."

    Synonyms

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

    Related terms

    * vacillant * vacillating * vacillation * vacillator * vacillatory

    External links

    * * *

    Anagrams

    * ----

    undecide

    English

    Verb

    (undecid)
  • To reverse or recant (a previous decision).
    • (Webster 1913)