What does mistrustful mean?
Mistrustful means having or showing a lack of confidence in other people, organizations, statements, or situations. It describes a state of suspicion that may arise from past experience, inconsistent information, or a general distrust of motives. In use, the adjective commonly follows the verb “be,” especially in the pattern “be mistrustful of” someone or something. It is more strongly worded than simply being cautious, because it implies a deliberate reluctance to rely on another person or claim. At the same time, it focuses on the speaker’s attitude, not on whether the person or thing is actually unreliable. The word can describe an individual feeling, a group outlook, or a broader social condition, such as public mistrustful attitudes toward institutions. It is therefore useful when discussing both individual judgment and widespread suspicion.
adjectiveHaving or showing a lack of trust or confidence in someone or something; suspicious or distrustful.
- Having or showing doubt about the reliability, honesty, or intentions of someone or something.
- Not willing to rely on or place confidence in someone or something.
"She was rightly mistrustful of the unfamiliar offer."
"The witness remained mistrustful of the witness statements given by the other suspects."
"Years of unreliable information left him deeply mistrustful of online claims."
Mistrustful is a reminder that suspicion is not merely a feeling: it can shape how we listen, judge, and act.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does mistrustful come from?
Mistrustful was formed in the 16th century from “mistrust” plus the adjective-forming suffix “-ful.” The underlying verb “mistrust” dates to the early 16th century and combines “mis-” with “trust,” expressing the idea of not trusting or doubting. “Distrust” developed through a similar formation and shares the same Germanic roots: “dis-” and “trust,” ultimately relating to the Old English word for confidence, faithfulness, or protection.
Related word forms
How mistrustful is actually used
The word is formal to neutral and generally carries a negative or cautionary connotation. It is more common in British and US English than in some other varieties.
Easily confused with mistrustful
Mistrustful describes a person's attitude of suspicion, whereas untrustworthy describes a person or thing considered unreliable or undeserving of trust.
These terms are very close in meaning; mistrustful often emphasizes a cautious or suspicious response to a particular situation, while distrustful can more broadly describe a settled unwillingness to trust.