Definition: Something that cannot be passed through, understood, or affected; it is difficult to enter or comprehend.

Example: The scientist struggled to explain the impenetrable concepts to her students.

Definition: Describing something that is necessary or urgent, often expressing a command or strong request.

Example: It is imperative that we finish the project by the deadline.

Definition: A command or order that someone must follow, often seen as necessary or urgent.

Example: In a crisis, it is imperative that we act quickly to save lives.

Definition: The quality of being very important or necessary; the need for something to be done urgently.

Example: The imperativeness of addressing climate change cannot be overstated.

Definition: Not complete or lacking some qualities; not perfect.

Example: Her performance was imperfect, but it still received applause from the audience.

Definition: A noun that refers to a verb form used in some languages to indicate an action that is ongoing or not completed, often used in past contexts.

Example: In French, the imperfect is used to describe actions that were happening in the past.

Definition: A flaw or defect in something that makes it less than perfect.

Example: The painting had a small imperfection that made it unique.

Definition: The quality of not being able to decay or be destroyed; lasting forever.

Example: The imperishability of their love was evident even after many years.

Definition: Something that does not decay or perish; it lasts forever or is eternal.

Example: The love between them felt imperishable, surviving all challenges.

Definition: The condition of not lasting forever; the idea that things are temporary and will change or end.

Example: The impermanence of life teaches us to appreciate every moment.

Definition: The state of being temporary or not lasting forever; the quality of being subject to change or decay.

Example: The impermanency of life reminds us to cherish every moment.

Definition: Something that does not last for a long time and is temporary.

Example: The beauty of the sunset is impermanent, fading away as night falls.