12 Common Behaviors That Signal Low Intelligence, Backed by Research

Intelligence is not a one-size-fits-all concept; it is multifaceted, like a well-cut diamond. It goes beyond book smarts; it includes critical thinking, emotional awareness, and adaptability. So, what indicates that a person is not intelligent?

This article will look at some scientifically supported indicators of low intelligence.

Poor Decision-Making Skills

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Poor decision-making skills are one of the most common signs of an unintelligent person. They make impulsive choices without considering the consequences.

According to a study on Behavioral Decision Making, intelligence and numeracy significantly improve decision-making abilities. Smart decision-making is a combination of emotional intelligence and analytical capabilities. Unintelligent people make poor decisions because they have trouble analyzing all options available.

Lack Of Curiosity​

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A lack of curiosity is also a sign of low intelligence. Individuals who lack curiosity tend to shy away from challenges that require deeper thought. In contrast, intelligent individuals yearn to explore and learn new things.

They are hungry for knowledge and are intrigued by a wide range of subjects. A Journal of Individual Differences study has linked curiosity to greater general knowledge and reasoning ability.

Inability To Adapt To Change

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Intelligent individuals welcome new ideas and experiences and adjust their strategies accordingly. They enjoy working in different environments and do not have any troubler stepping outside their comfort zone.

Conversely, those with lower intelligence often resist change because they can’t adapt. They stick to familiar routines and resist new ideas or approaches. People who resist change usually find their personal growth stunted. They are unable to deal with surprises and can;t keep pace with the ever-changing world.

No Emotional Intelligence

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No emotional intelligence can also be a sign of low overall intelligence. Emotional intelligence or EQ is defined as the ability to recognize, understand, and manage both one’s own emotions and those of others. It’s vital for successful social interactions. People with low intelligence find it challenging to understand or empathize with emotions, whether their own or others. As a result, they may seem indifferent or unaware of social cues.

Research by Stéphane Côté and Christopher T. H. Miners highlights that emotional intelligence can significantly impact job performance, especially when cognitive intelligence is lower.  

Resistance to Feedback

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People with low intelligence are also averse to any feedback. They becoming argumentative or dismissive of any suggestion. They act defensively, instead of viewing constructive criticism as an opportunity for growth. They becoming argumentative or dismissive.

Psychologists suggest this defensiveness often stems from underlying insecurities. Rejecting feedback is actually  detrimental to the growth and personal development of any individual. Embracing criticism, on the other hand, allows for self-improvement and improves adaptability.

Not Taking Responsibility For Mistakes

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The ability to learn from those mistakes is a crucial indicator of intelligence. Intelligent individuals analyze their mistakes and learn from them. People with lower intelligence usually faill to recognize their mistakes. They may repeat the same mistakes, failing to recognize patterns.

They also tend to shift blame onto others. In his book Boundaries for Leaders, Dr. John Townsend notes that accountability is essential for mental health and growth. To foster self-awareness and a growth mindset, you must learn from your mistakes, rather than shift blame. 

Poor listening skills

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Highly unintelligent people often struggle with active listening. They frequently interrupt when others are talking, form premature conclusions, and give more importance to their own thoughts. Poor listening skills can significantly affect communication.

They limit a person’s ability to learn, grow, and connect with others. So, if order to communicate with others effectively, speaking and listening skills are equally important. 

Overconfidence

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While confidence is a positive trait, excessive confidence usually means the person is unaware of his limitations. People who overestimate their own abilities or knowledge are usually not very intelligent.

The Dunning-Kruger effect explains this phenomenon, suggesting that individuals with limited knowledge or skills overestimate their abilities. In contrast, individuals with higher intelligence are more likely to recognize their own shortcomings and seek opportunities to learn and grow.  

Poor Time Management

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Managing time effectively requires planning, organization, and prioritizing. Intelligent people excel at this as they set achievable goals and steer clear of procrastination. People with poor time management skills miss deadlines, struggle to stay focused and feel more stressed.

They might have difficulty deciding which tasks are most important and frequently get sidetracked. They might find it challenging to prioritize tasks and often succumb to distractions.  

Repeatedly Dressing Inappropriately

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Dressing appropriately for the occasion shows a lack of social intelligence and an understanding of context. While you may like to showcase your style, dressing inappropriately suggests disregard for social cues and norms and a lack of awareness. As a Scientific American study suggests, clothing can even influence cognitive functions.

Therefore, while not a direct measure of intelligence, a repeated failure to dress appropriately can indicate a lack of social awareness and an inability to adapt to different situations, which can be indirectly associated with lower overall cognitive flexibility.

Inability To See Different Viewpoints

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Intelligence involves the ability to understand and value different perspectives. Intelligent people can look beyond their own experiences and consider other viewpoints and cultural differences. This ability to see different views fosters empathy, compassion, and effective communication.

People with low intelligence remain entrenched in their beliefs and judge others based on their limited worldview. This lack of understanding can hinder communication, create conflict, and limit personal growth.

Limited Vocabulary

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Limited vocabulary is not the only indicator of intelligence, but a consistently limited vocabulary can sometimes be linked to lower IQ scores. People with limited vocabularies may struggle to articulate complex thoughts, understand nuanced texts, and participate fully in sophisticated conversations.

This highlights the importance of language development for effective communication and cognitive growth. Expanding one’s vocabulary through reading and conversation can enhance communication and mental abilities.

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