A study published in the journal Language Sciences by psychologists Christine L. Jay and Timothy B. Jay challenges the common belief that people who swear frequently have a limited vocabulary. Instead, the researchers found that individuals who knew more swear words also tended to perform better on tests measuring verbal ability and overall language skills.
Swearing is often associated with poor education or low intelligence, but the findings suggest that a broad knowledge of profanity may simply be one part of a larger and more developed vocabulary.
Researchers Tested Different Types of Verbal Fluency
The researchers focused on verbal fluency, which measures how easily people can retrieve words from memory. In a standard verbal fluency task, participants are asked to produce as many words as possible beginning with a specific letter within a limited period. Higher scores generally indicate stronger vocabulary and language ability.
To compare different aspects of language, the researchers added two additional tasks. Participants were also asked to name as many animals as possible to assess semantic memory and to list as many swear words as they could remember. This allowed the researchers to compare general vocabulary, category knowledge, and knowledge of profanity.
Larger Vocabularies Included More Swear Words
The first experiment involved 43 university students. Participants who generated the highest number of words in the standard verbal fluency task also produced more animal names and more swear words than those with lower scores.
The results suggest that knowing many swear words is associated with a broader vocabulary rather than a limited one.
The researchers also observed differences in how participants retrieved different types of words. Animal names were produced most quickly, standard vocabulary words required slightly more effort, and swear words generally took the longest to recall. Participants often hesitated before saying their first swear word, something the researchers suggest may reflect social norms and self-censorship.
Only 10 commonly used swear words accounted for more than half of all profanity produced during the task. While animal names are typically organized in memory according to categories such as wild or domestic animals, swear words appear to be grouped primarily according to their emotional intensity rather than their literal meaning.
A second experiment involving 49 university students produced similar findings. This time, participants wrote their responses instead of speaking them aloud, reducing the pressure associated with saying taboo words. Once again, stronger verbal fluency was linked to both a larger general vocabulary and a greater knowledge of swear words.
Personality Traits Were Also Examined
In a third experiment involving 126 university students, the researchers investigated whether personality characteristics were associated with profanity knowledge. Participants who knew more swear words tended to score higher on openness to experience and neuroticism, personality traits associated with curiosity and stronger emotional responsiveness.
Greater knowledge of profanity was also linked to lower levels of agreeableness and conscientiousness, traits commonly associated with cooperativeness and self-discipline.
The researchers found that men and women demonstrated very similar profanity vocabularies. The most frequently reported swear words were largely the same across both groups, suggesting that knowledge of taboo language was comparable regardless of gender.
The authors also acknowledged several limitations. All participants were university students, meaning the findings may not apply equally to other populations. In addition, the study measured how many swear words participants knew, not how frequently they used them in everyday conversation or whether they adjusted their language depending on social situations.
Challenging Common Assumptions About Swearing
Taken together, the findings challenge the widespread assumption that swearing reflects poor language ability or a lack of vocabulary. Instead, people with stronger overall verbal skills also appear to possess a larger repertoire of taboo words, regardless of how often they choose to use them.
The researchers argue that the more important question is not whether someone knows swear words, but how and when they use them. Swear words appear to occupy a distinct emotional category within the mental lexicon, reflecting the complex role language plays in expressing both information and emotion.
Other research has also suggested that swearing may serve several social and psychological functions, including helping people cope with pain, strengthening social bonds, and expressing authenticity. While context remains important, the findings indicate that knowledge of profanity should not automatically be viewed as evidence of poor language skills.
