Pronunciation: [ʌnθˈɪŋkɪŋ] (IPA) 
The word "unthinking" is spelled as /ʌnˈθɪŋkɪŋ/ in IPA phonetic transcription. It is formed by adding the prefix "un-" to the root word "thinking," which means to contemplate or ponder. The stress is on the second syllable, and the last syllable is pronounced as "kɪŋ." The "th" sound in the second syllable is pronounced as /θ/, which is a voiceless dental fricative. Overall, "unthinking" means lacking in thought or mindfulness.
Unthinking is an adjective that describes an individual or their actions characterized by a lack of thought, consideration, or reflection. It refers to behavior that is impulsive, rash, or instinctive, often devoid of careful analysis or logical reasoning. An unthinking person typically acts on their immediate instincts or emotions without taking into account the potential consequences or implications of their actions.
This term suggests a lack of awareness or mindfulness, indicating that individuals acting in an unthinking manner may not be fully conscious of the effects their behaviors might have on themselves or others. They may act without regard for social norms, etiquette, or the impact on their relationships or environment.
In some cases, unthinking behavior can stem from a lack of knowledge or information on a particular subject or situation. It implies a lack of reflection or critical thinking skills, as individuals may not engage in deep, meaningful contemplation before making decisions.
Unthinking actions can manifest in various contexts, such as personal relationships, professional settings, or social interactions. It is often considered detrimental when it leads to careless mistakes, thoughtless remarks, or irresponsible behavior. Conversely, being "thoughtful" or "mindful" is considered the opposite of unthinking, implying a conscious and deliberate approach to decision-making, characterized by consideration, reflection, and empathy.
Thoughtless; inconsiderate.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "unthinking" is a combination of the prefix "un-", which means "not", and the present participle form of the verb "think".
The root word "think" originated from the Old English word "thencan" meaning "to conceive of in the mind, consider". Over time, it evolved into "thinken" and then "think".
The addition of the prefix "un-" negates the meaning of the word, transforming "thinking" into "unthinking", implying the absence or lack of thinking or thoughtfulness.
