Something difficult or impossible to estimate, assess, or understand

The transfer of genetic information from one species to another through repeated backcrossing.

the inside part of something; inner area of a place or object

Without a doubt; certainly.

Lacking perception, consciousness, or sensation.

the state of being invalid, legally void, or lacking force or validity

Lack of fairness or justice; the practice of being unjust or unfair.

Harm or injury that cannot be undone or repaired.

To catch fire or cause to catch fire; to start or arouse.

The state of not being enough or not being adequate.

To turn something upside down or in the opposite position, order, or direction.

The state of occurring rarely or at long intervals.

an innocent, naïve young woman, especially as represented in literature or theater

Caused a process or action to begin; started something.

The development of industries in a country or region on a wide scale.

So subtle or gradual that it is difficult to notice or perceive

A woman with whom someone is in love; a female lover.

the quality of shining brightly; the intensity of light falling on a surface

To insert or introduce something into a place or body.

To give strength or energy to someone or something.

A thing that indicates the state or level of something.

close familiarity or friendship; closeness; a private cozy atmosphere

lack of accuracy or precision; an incorrect or wrong detail

Existing in something as a natural, permanent, or essential quality.

Not capable of catching fire or burning.

Not clear or sharply defined; vague or blurred.

unlucky; showing signs that future success is unlikely; unfavorable

not confident or assured; uncertain and anxious

To stain, especially with blood.

A hindrance or obstruction in doing something; something that prevents progress.

Not able to wait calmly; restless and eager for something to happen.

to deprive someone or something of the ability or strength to function

A single thing, object, or unit, often part of a list or collection.

Happening rarely or not often.

Causing shame or disgrace; not bringing honor or glory.

A group of words whose meaning is different from the meanings of the individual words.

unable to be seen; not visible to the eye

Having a bad or unpleasant character; unkind or malicious.

An instance of invading a country, region, or personal space with armed force or unwelcome presence.

easily annoyed or made angry

Not sufficient or good enough.

a sudden strong and unreflective urge or desire to act; a driving force or motivation

The rapid development of industry that occurred in Britain in the late 18th and 19th centuries, brought about by the introduction of machinery and characterized by the use of steam power and the growth of factories.

to arouse curiosity or interest; to make someone fascinated

the state of not being fully developed emotionally, mentally, or physically; lack of maturity

Having the ability to create or design new things or to think originally.

not reasonable or sensible; lacking logic

Relating to or marking the beginning or initial stage of something.

intense anger or rage

relating to Islam, its followers, or its teachings

a colored fluid used for writing, drawing, or printing; a dark liquid ejected by cuttlefish

the capacity to have an effect on the character, development, or behavior of someone or something

the act of making something better

causing annoyance, impatience, or mild anger

to prohibit or forbid something by authoritative order, often by law or decree

Extremely angry.

Not showing or feeling emotion; expressionless.

so extraordinary that it is hard to believe; amazing

Not conforming to accepted standards of morality; unethical or wicked.

A line on a weather map connecting points of equal atmospheric pressure.

to ask; to investigate

the formal ceremony of conferring authority, rank, or office

lacking harmony; discordant in sound; not in tune

To make someone annoyed or angry; to cause discomfort or inflammation.

to have as part of a whole; to contain or comprise

Too great or valuable to be measured or estimated.

Occurring within the walls of a single institution, especially a school or college.

Lack of ability, skill, or effectiveness in doing something.

to point out; to show or suggest; to be a sign of

Detailed information on how something should be done or operated.

To implant or fix deeply, often used in the sense of grafting an idea or quality.

Discomfort or pain in the stomach associated with difficulty in digesting food.

In or for the intervening period; provisional or temporary.

Unable to be destroyed, broken, or dissolved.

A person who brings about or initiates something, usually something bad.

Impossible to travel along or over.

Mental or spiritual power that helps a person cope with difficulties.

a play of lustrous, changing colors like those of a rainbow

Existing or occurring at the beginning.

to provide insurance; to make certain

designed to cause fires or stir up conflict

not paying attention; lacking focus or concentration

Causing or likely to cause harm or damage.

deceptive; appearing to exist but not real; misleading

To make something not valid or legally acceptable.

To repeat a process or statement, often to improve or refine.

Feeling or showing anger at something considered unfair or unjust.

relating to Italy, its people, or its language; a person from Italy

an image or representation of a god used as an object of worship; a person who is greatly admired

To examine one's own thoughts, feelings, or mental state.

Showing curiosity or concern about something.

The agricultural practice of cultivating two or more crops simultaneously in the same field to maximize land use efficiency and improve soil health.

habitual sleeplessness; inability to sleep; the condition of being unable to sleep

Lack of foresight or care for future needs.

lacking the ability or strength to move or act; chemically inactive

In accordance with the highest standards; faultless.

a thought or suggestion as to a possible course of action; a concept or mental impression

to allow oneself to enjoy something enjoyable, often excessively

Lack of moderation or self-control, especially with drinking or eating.

About to happen; likely to occur very soon.

The state of being cold in manner or temperature.

To suggest something without directly stating it.

A person or thing regarded as a symbol of something, or a graphic symbol on a screen.

A person who acts as a link between people in order to try to bring about an agreement; a mediator.

The quality of being calm and not easily disturbed or upset.

To actively break the terms of a law, agreement, or right.

The condition of dying without having made a valid will.

impossible to understand or interpret

Of extreme force, degree, or strength.

free from guilt or sin; pure; harmless; naive

A violent uprising against an authority or government.

contaminated; not clean; mixed with foreign substances

the emission of light from a hot object; brilliance

a small invertebrate animal with six legs and usually one or two pairs of wings

Unwise or imprudent; not showing good judgment.

Relating to or resembling fish.

Impossible to control or restrain.

to force someone to accept something; to establish or apply by authority

the state of being unable to exist or work together harmoniously; lack of compatibility

A religious image or symbol, especially in the Eastern Orthodox Church.

Happening immediately, without any delay.