英语词汇词典 | 单词含义、定义和示例
involving or causing danger or risk; not protected from harm
"It is unsafe to walk alone in this neighborhood at night."
having a practical or beneficial use
"This tool is very useful."
higher in position or rank
"The upper floor of the building is under renovation."
modest; not attempting to impress others with appearance or importance
"She lives in an unpretentious home but is very happy."
able to be seen; perceptible by the eye
"The stars were clearly visible in the night sky."
to make someone lose confidence, courage, or composure
"The hostile questions began to unnerve the witness."
except if
"We won't go unless it stops raining."
Related to understanding the relationship between space and objects through vision.
"Good visuospatial skills are important for architecture and design."
Not worried or disturbed by something; calm and composed.
"She remained unperturbed despite the challenges."
not able to be disputed or doubted; certain and beyond doubt
"Her honesty and integrity are unquestionable qualities."
Having or showing high moral standards.
"She is known as a virtuous woman who helps the poor."
not yielding profit or gain; not producing financial benefit
"The unprofitable business was forced to close down after three years."
Not planned in advance; happening spontaneously or without organization.
"Unplanned urbanization causes severe problems."
absolute; not lessened or moderated
"The meeting was an unmitigated disaster."
to spoil, weaken, or make something less effective
"One careless remark can vitiate the entire argument."
The severity or harmfulness of a disease or poison.
"Scientists studied the virulence of the new virus strain."
a person who goes to see a place or someone for a short time
"The museum had many visitors last weekend."
too bad to be forgiven; inexcusable
"His betrayal of trust was an unpardonable offense."
Computer technology that creates an artificial three-dimensional environment where users can feel like they are in a real environment.
"Virtual reality (VR) is widely used in gaming and training simulations."
To criticize harshly or abuse verbally.
"The politician was quick to vituperate his opponents during the debate."
not solved or settled; remaining undecided or unclear
"The dispute remains unresolved despite several meetings."
Not equaled or rivaled by any other; without equal.
"The freedom fighters showed unmatched bravery."
to turn into glass or a glass-like substance by heat
"Sand can vitrify under intense heat."
lacking education or the ability to read and write; illiterate
"The unlettered villagers relied on oral traditions to preserve their history."
Information or understanding that has never been obtained or achieved before.
"Artemis will provide unprecedented knowledge about the solar system."
The quality of being impossible to predict or anticipate.
"The unpredictability of the weather made the trip uncertain."
A tiny infectious agent that can replicate only inside the living cells of an organism.
"The computer was infected with a dangerous virus."
not conforming to the standards expected in a particular profession
"His unprofessional behavior led to his dismissal from the company."
Having a thick, sticky consistency between solid and liquid.
"Honey is a viscous liquid that flows slowly."
not able to be predicted; changing suddenly and unexpectedly
"The weather in this region is highly unpredictable."
Without suffering any injury, damage, or harm.
"She escaped from the accident unscathed."
not having the necessary skills or qualifications; complete or absolute
"He was unqualified for the engineering position due to lack of experience."
the ability to see or a mental image of something
"She had a clear vision of her future."
To form a mental image of something; to imagine.
"She tried to visualize her success before the big presentation."
having a glass-like appearance or quality
"The mineral has a vitreous shine."
not dependable; not able to be trusted or relied upon
"The old car is unreliable and breaks down frequently."
difficult or impossible to control or handle
"The large class became unmanageable without proper supervision."
not officially authorized or confirmed; informal
"The unofficial results showed a close race."
a natural substance needed by the body to stay healthy
"Fruits and vegetables are rich sources of vitamins."
Not producing or achieving much; not effective or useful.
"The meeting was unproductive and wasted everyone's time."
not sold; remaining without a buyer
"The unsold goods were returned to the warehouse."
having no equal; better or greater than any other
"Her talent as a singer is unparalleled in this generation."
not attractive or appealing in appearance
"Despite his unprepossessing looks, he was very kind and intelligent."
A pleasing view, especially one seen through a long, narrow opening.
"From the mountain top, we admired the breathtaking vista of the valley below."
Disorderly, disruptive, or difficult to control.
"The teacher struggled to calm the unruly students."
Characterized by abusive or harsh language.
"The teacher’s vituperative remarks left the students in tears."
Going to see and spend time with someone or at a place.
"The group is visiting islands during the expedition."
not enjoying the company of others; avoiding social interaction
"He became unsociable after moving to a new city."
High moral standards or a good quality considered morally good.
"Patience is considered a great virtue."
