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Precarious vs Vacillate - What's the difference?

precarious | vacillate |

As an adjective precarious

is (comparable) dangerously insecure or unstable; perilous or precarious can be (dentistry) relating to incipient caries.

As a verb vacillate is

to sway unsteadily from one side to the other; oscillate.

precarious

English

Etymology 1

From (etyl) , and Spanish and Italian precario.

Adjective

(en adjective)
  • (comparable) Dangerously insecure or unstable; perilous.
  • *
  • , title=(The Celebrity), chapter=4 , passage=One morning I had been driven to the precarious refuge afforded by the steps of the inn, after rejecting offers from the Celebrity to join him in a variety of amusements. But even here I was not free from interruption, for he was seated on a horse-block below me, playing with a fox terrier.}}
  • (legal) Depending on the intention of another.
  • Synonyms

    * (not held or fixed securely and likely to fall over) unsteady, rickety, shaky, tottering, unsafe, unstable, wobbly

    Usage notes

    * Because the (term) element of (term) derives from prex and not the preposition prae, this term cannot — etymologically speaking — be written as *.

    Quotations

    * 1906 , (Jack London), , part I, ch III, *: Never had he been so fond of this body of his as now when his tenure of it was so precarious .

    Derived terms

    * precariously * precariousness * precariat * precarisation, precarization * precarity

    Etymology 2

    pre-'' + ''carious

    Adjective

    (-)
  • (dentistry) Relating to incipient caries.
  • 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

    Anagrams

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