Possessing good understanding, comprehension, or judgement; quick-witted; showing mental acuity.


US English

UK English

Part of Speech



Smart, wise, knowledgeable, shrewd, insightful, brilliant, astute, savvy


Dumb, ignorant, stupid, foolish, unintelligent, unwise

Word Forms

Part of Speech Words
Noun intelligence, intelligences
Verb None
Adjective intelligent
Adverb intelligently

Example Sentences

  • John’s exceptional problem-solving skills and ability to grasp complex concepts quickly showcased his intelligent nature in the field of mathematics.

  • The intelligent software algorithm efficiently analyzed large datasets and provided valuable insights for the company’s strategic decision-making process.

  • As an intelligent speaker, Sarah effortlessly engaged the audience with her well-researched and thought-provoking presentation on artificial intelligence.

  • The intelligent robotic system autonomously adapted to its environment, using advanced sensors and algorithms to perform tasks with precision and efficiency.


The word “intelligent” has its roots in the Latin word “intelligere,” which means “to understand” or “to comprehend.” The prefix “in-” denotes “not” or “lack of,” and the suffix “-ent” is added to form the adjective “intelligent.” It is used to describe individuals or things that possess a high level of cognitive ability, reasoning, and understanding.

The term “intelligent” is commonly used to refer to people who demonstrate advanced mental capabilities, such as logical thinking, problem-solving skills, and the ability to acquire and apply knowledge effectively. It is associated with qualities such as quick-wittedness, sharpness, and adaptability in processing information.

Intelligence can manifest in various forms, including academic intelligence, emotional intelligence, and practical intelligence. Academic intelligence refers to intellectual prowess in areas such as mathematics, language, and science. Emotional intelligence relates to the ability to understand and manage emotions effectively, including empathy, self-awareness, and social skills. Practical intelligence involves the capacity to apply knowledge and skills in real-life situations, demonstrating practical problem-solving abilities.

The term “intelligent” is widely used in educational, professional, and everyday contexts. It is often used to describe individuals who excel in their studies, occupations, or problem-solving tasks. In educational settings, students are recognized for their intelligence based on their academic achievements and intellectual capabilities. In the workplace, employers seek intelligent individuals who can contribute innovative ideas, make sound decisions, and solve complex problems.

The concept of intelligence has been a subject of study in psychology and cognitive science. Researchers have explored different theories of intelligence, including general intelligence (g-factor) and multiple intelligences (such as linguistic, logical-mathematical, spatial, musical, bodily-kinesthetic, interpersonal, and intrapersonal intelligences).

Overall, the term “intelligent” conveys the notion of mental aptitude, cognitive capacity, and the ability to comprehend and apply knowledge effectively. It is a desirable quality that is valued in various domains of human activity.