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C1 Level Wordlist - Trust and Uncertainty

Here you will learn some English words about trust and uncertainty, such as "toss", "underestimate", "weaken", etc. prepared for C1 learners.

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CEFR C1 Vocabulary
to assure
to assure
[Verb]

to guarantee that something specific will happen

Ex: The team 's exceptional performance in the finals assured a decisive victory .
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to check on

to check the wellbeing, truth, or condition of someone or something

Ex: He went to check on the car parked outside after hearing a loud noise .
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to count on

to put trust in something or someone

Ex: We can count on the public transportation system to be punctual and efficient .
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to presume

to think that something is true based on probability or likelihood

Ex: Not receiving a call , he presumed that the job interview had been postponed .
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to toss
to toss
[Verb]

to make a decision by throwing a coin in the air and guessing which of its sides will be facing upward when it lands

Ex: The teams were tied , so they tossed a coin to determine the winner .
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to underestimate

to regard something or someone as smaller or less important than they really are

Ex: The artist 's talent was often underestimated until she showcased her work in a major gallery .
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to weaken
to weaken
[Verb]

to become less resolved or determined

Ex: Despite his initial determination to finish the marathon , his resolve weakened as fatigue set in .
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assured
assured
[Adjective]

displaying confidence in oneself and one's capabilities

Ex: The CEO's assured decision-making skills guided the company through turbulent times with resilience.
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concrete
concrete
[Adjective]

according to facts instead of opinions

Ex: The success of the project was attributed to concrete planning and meticulous execution .
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doubtful
doubtful
[Adjective]

improbable or unlikely to happen or be the case

Ex: The explanation seems doubtful, considering all the facts .
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dubious
dubious
[Adjective]

(of a person) unsure or hesitant about the credibility or goodness of something

Ex: They were dubious about his commitment to the team after his repeated absences .
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inconclusive
inconclusive
[Adjective]

not producing a clear result or decision

Ex: The results of the experiment were inconclusive, requiring further testing to reach a clear outcome .
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robust
robust
[Adjective]

remaining strong and effective even when facing challenges or difficulties

Ex: The robust response from the community helped prevent the closure of the local library .
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set
set
[Adjective]

prepared or likely prepared for something

Ex: After months of planning and rehearsals, the cast was set for the opening night of the play.
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skeptical
skeptical
[Adjective]

having doubts about something's truth, validity, or reliability

Ex: The journalist maintained a skeptical perspective , critically examining the sources before publishing the controversial story .
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speculative
speculative
[Adjective]

according to opinions or guesses instead of facts or evidence

Ex: She offered a speculative explanation for his sudden disappearance , based on rumors she had heard .
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suspected
suspected
[Adjective]

(particularly of something bad) assumed to have happened or be the case without having any proof

Ex: The committee launched an investigation into the suspected embezzlement of funds after noticing irregularities in the accounts .
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tentative
tentative
[Adjective]

not firmly established or decided, with the possibility of changes in the future

Ex: The company made a tentative offer to the candidate , pending reference checks .
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undeniable
undeniable
[Adjective]

clearly true and therefore impossible to deny or question

Ex: The results of the experiment were undeniable, confirming the hypothesis .
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to [be] (only|just|) a matter of time

to certainly happen at some point in the future

Ex: With his talent, success is only a matter of time.
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or what
or what
[phrase]

used to show one's uncertainty of something

Ex: Is this how we're supposed to set up the equipment, or what?
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to [stand] a chance

to have a likelihood of success or achieving a desired outcome

Ex: If we leave now, we still stand a chance of arriving on time.
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there [is] no question of

used to convey that something cannot happen under any given circumstances

Ex: There is no question of the team's dedication; they have worked tirelessly on this project.
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(you|one) can never tell

used to say that one can never be sure of something

Ex: When it comes to investments, one can never tell for sure how the market will perform in the long run.
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guesswork
guesswork
[noun]

the action of trying to provide an answer without having all the necessary information

Ex: His prediction about the stock market was based more on guesswork than on actual analysis .
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hesitation

the fact of being uncertain about something

Ex: Her hesitation before answering the question suggested she was unsure of the correct response .
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outlook
outlook
[noun]

one's thoughts or expectations regarding what will happen in the future

Ex: The weather forecast gave a gloomy outlook for the weekend , with heavy rain expected .
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paradox
paradox
[noun]

a logically contradictory statement that might actually be true

Ex: The famous paradox of Schrödinger 's cat illustrates the complexity of quantum mechanics .
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uncertainty

a condition or situation that is unsettled, dependent on chance, or unpredictable, often causing doubt

Ex: Rising oil prices created uncertainties in the global economy .
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easily
easily
[Adverb]

in a manner that suggests something could very well happen or be true

Ex: The storm could easily cause flooding .
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supposedly
supposedly
[Adverb]

used to suggest that something is assumed to be true, often with a hint of doubt

Ex: He supposedly has insider information , but we should verify the facts before making any decisions .
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as luck would have it

said to mean that a good or bad event occurred by chance

Ex: As luck would have it, the last train arrived just as I reached the platform .
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bulletproof
bulletproof
[Adjective]

guaranteed to bring success or survive challenges or criticism without being affected

Ex: The engineer developed a bulletproof design for the bridge to withstand even the harshest weather conditions.
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