Pronunciation: [nˈasti lˈʊk] (IPA) 
The spelling of the phrase "nasty look" is fairly straightforward: "nasty" is spelled /ˈnæsti/ and "look" is spelled /lʊk/. The first word, "nasty," is written with an "a" sound as in "cat," followed by an "s" and a "t", and then another "i" sound as in "bit." The second word, "look," is spelled with an "oo" sound as in "book" followed by a "k" sound. Together, these words create a phrase that refers to a harsh or disdainful gaze.
The term "nasty look" refers to an expression or appearance of displeasure, anger, or contempt that is characterized by a harsh and unkind facial expression. It is an informal phrase commonly used to describe someone's facial expression that displays a negative or hostile attitude towards someone or something. The "nasty look" is often associated with intense scowling, narrowed eyes, furrowed brows, and tightly pressed lips, conveying a disapproving or disdainful view.
This term can be used to describe various scenarios, such as when someone receives an unfavorable comment or experiences a disrespectful action, prompting them to respond with a "nasty look" aimed at conveying their dissatisfaction. The "nasty look" can also be used to describe a general facial expression that is uninviting, and unfriendly, suggesting a lack of warmth, kindness, or compassion.
Moreover, the term may be utilized figuratively to describe a judgmental or critical viewpoint expressed non-verbally through facial cues. It implies a negative or hostile evaluation of someone's appearance, behavior, or actions, often without any verbal communication involved.
Overall, the "nasty look" represents an unkind, displeased, or contemptuous facial expression that displays dissatisfaction, disapproval, or animosity towards someone or something.
The word "nasty" originates from the Old French word "nastre", meaning "dirty, filthy". It entered English language in the 14th century and initially carried a meaning of physical dirtiness or filth. Over time, it also came to be associated with moral or immoral behavior, leading to its modern-day connotation of unpleasantness or offensiveness.
The term "look" derives from the Old English word "lōcian" which means "to see, look". It has remained relatively unchanged in meaning throughout its history.
When "nasty" is combined with "look", it forms the phrase "nasty look". This compound phrase refers to a facial expression or gaze that is characterized by unpleasantness, disdain, or hostility.
