The state or quality of existing without an endpoint or limitation in time, often associated with concepts of timelessness or infinity.
A condition characterized by unchanging or constant existence, suggesting a sense of stability or endurance throughout time and across different circumstances.
The notion of enduring continuity, particularly in a spiritual or emotional context, implying unyielding loyalty or unaltered love that persists indefinitely.
A traditional or poetic expression that refers to an everlasting state, often used in rituals or declarations, emphasizing profound commitments that transcend temporal boundaries.
Example:
彼は永久に日本を離れた。
A method or treatment that leads to the long-lasting elimination of hair from the body, preventing its regrowth over time.
A cosmetic procedure aimed at achieving lasting smoothness by targeting hair follicles, effectively hindering their ability to produce hair permanently.
A process involving the eradication of hair through various techniques, ensuring that the hair does not return, often sought for aesthetic purposes.
A definitive solution for those seeking to rid themselves of unwanted body hair, utilizing technologies that ensure the hair does not reappear.
Describing a state or condition that lasts for a significantly long time, but is not truly eternal, often implying that it can be changed or removed with effort.
Characterizing something that maintains its function or existence for an extended period, while still being susceptible to eventual change or degradation.
Referring to an arrangement or structure that is designed to endure for a long duration, yet is not completely indestructible or unalterable.
A state of existence that is nearly eternal, implying a duration that, while not truly permanent, lasts for an exceptionally long time.
The characteristic of being able to endure for an extended period, approaching permanence, but not entirely infinite in duration.
A theoretical machine that can operate indefinitely without an external energy source, performing work without any loss of energy in the process.
A concept in physics that describes a device designed to produce work continuously without any input, fundamentally violating the laws of thermodynamics.
A hypothetical engine that can maintain motion forever, suggesting the ability to create energy from nothing, which has been proven to be impossible.