Definition of suspicious in English:



  • 1Having or showing a cautious distrust of someone or something.

    ‘he was suspicious of her motives’
    ‘she gave him a suspicious look’
    • ‘Are they suspicious of whether or not the United States is the best vehicle for that change?’
    • ‘They are also deeply suspicious of American motives.’
    • ‘One becomes suspicious of every person in the vicinity while providing security to VVIPs.’
    • ‘They are intensely suspicious of science and experimentation, and regard new technology with dread.’
    • ‘Logan's military assignments made him naturally suspicious of strangers who questioned him, but Marie was different.’
    • ‘This was not what the Empress had in mind and she's highly suspicious of the whole business.’
    • ‘She is suspicious of doctors and nurses and takes her medication only episodically.’
    • ‘By the time Finland became independent, they were a bit suspicious of nobility.’
    • ‘Maybe people are suspicious of me, but the reality is that I'm spending most of my time looking at how we make the club game work.’
    • ‘As a Tory woman I'm instinctively suspicious of positive discrimination.’
    • ‘No doubt, even those who are not firmly anti-American will be deeply suspicious of American motives.’
    • ‘They will readily take floating baits but can be very suspicious at times.’
    • ‘I'm almost always suspicious of hand-me-down wisdom, and irritated by stock phrases like this.’
    • ‘After a while, the viewer is doomed to grow suspicious of a creative mind that never thinks of simply walking around the wall.’
    • ‘We're generally suspicious of boxing and we exempt wrestling from all expectations of fair play.’
    • ‘The local musicians and the tourists were thoroughly suspicious of something so synthetic, and it petered out.’
    • ‘In general she is suspicious of films about the music business, because Hollywood always gets the details wrong.’
    • ‘People will always be suspicious of the answer you come up with, even if it is the right answer.’
    • ‘No wonder people are suspicious of politicians and the political process.’
    • ‘In fact he was suspicious of any technological advance that might weaken the ‘master race’.’
    doubtful, unsure, dubious, wary, chary, sceptical, distrustful, mistrustful, disbelieving, having reservations, apprehensive, cynical, jaundiced
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    1. 1.1 Causing one to have the idea or impression that someone or something is questionable, dishonest, or dangerous.
      ‘they are not treating the fire as suspicious’
      • ‘Police are appealing for information from people who may have noticed anything suspicious in the area.’
      • ‘I actually think there is something suspicious in the idea from the start.’
      • ‘The Indonesian Embassy in Canberra has had to be closed because of a suspicious package.’
      • ‘We are also urged to be vigilant for suspicious behaviour, vehicles and packages.’
      • ‘On trains they are being used to search carriages for suspicious packages.’
      • ‘Two reports of suspicious packages have already been reported to the police.’
      • ‘Police did not treat her death as suspicious at the time.’
      • ‘Police are not treating the death as suspicious, but inquiries are on-going.’
      • ‘There might be something suspicious, but it's a joke.’
      • ‘None of eight witnesses called by the prosecution saw anyone suspicious, he maintained.’
      • ‘A bomb disposal squad was dispatched to Colchester Castle to deal with a suspicious package.’
      • ‘Such practices, which began during this time period, took place under highly suspicious circumstances.’
      • ‘The vague information about a suspicious vehicle did not point to the commission of any criminal offence.’
      • ‘Residents are also asked to be vigilant in the communities they live in and report anything suspicious to police.’
      • ‘The death was initially treated as suspicious and Hardy was questioned.’
      • ‘Ari found the suspicious package in a cardboard box and immediately reported his discovery to the police.’
      • ‘Concern spread to other areas as well, with people reporting suspicious packages from coast to coast.’
      • ‘Police say they were tipped off to a suspicious package near a parking garage next to the hotel.’
      • ‘Four suspicious packages were examined by police but found to be harmless.’
      • ‘You mentioned the suspicious package was left in front of that precinct building.’
      disreputable, unsavoury, dubious, suspect, guilty-looking, dishonest-looking, strange-looking, queer-looking, funny-looking, slippery
      questionable, odd, strange, dubious, irregular, queer, funny, doubtful, not quite right, under suspicion, mysterious, murky, dark, criminal, dishonest, corrupt
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    2. 1.2 Having the belief or impression that someone is involved in an illegal or dishonest activity.
      ‘police were called when staff became suspicious’
      • ‘As the scam unfolded that night in the studio, production staff became suspicious.’
      • ‘As someone who works in the unions, what do you tell activists who are suspicious about the union movement?’
      • ‘Both had been suspicious ever since he showed up, mysteriously with a blank slate.’
      • ‘Becoming suspicious she questioned him and he told her that he was staying in a nearby hotel.’
      • ‘At this point, the owner became suspicious and questioned them about what they were doing.’
      • ‘A firm in the USA became suspicious about the activities of an employee.’
      • ‘Everything was darker on this floor and the duo was suspicious about it.’


Middle English: from Old French suspicious, from Latin suspiciosus, from suspicio(n-) (see suspicion).