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uselessness    
n. 無用

無用

uselessness
n 1: the quality of having no practical use [synonym: {inutility},
{uselessness}, {unusefulness}] [ant: {usefulness},
{utility}]

Useless \Use"less\, a.
Having, or being of, no use; unserviceable; producing no good
end; answering no valuable purpose; not advancing the end
proposed; unprofitable; ineffectual; as, a useless garment;
useless pity.
[1913 Webster]

Not to sit idle with so great a gift
Useless, and thence ridiculous. --Milton.
[1913 Webster]

Syn: Fruitless; ineffectual.

Usage: {Useless}, {Fruitless}, {Ineffectual}. We speak of an
attempt, effort, etc., as being useless when there are
in it inherent difficulties which forbid the hope of
success, as fruitless when it fails, not from any such
difficulties, but from some unexpected hindrance
arising to frustrate it; as, the design was rendered
fruitless by the death of its projector. Ineffectual
nearly resembles fruitless, but implies a failure of a
less hopeless character; as, after several ineffectual
efforts, I at last succeeded.
[1913 Webster]

Useless are all words
Till you have writ "performance" with your
swords.
The other is for waiving. --Beau. & Fl.
[1913 Webster]

Waiving all searches into antiquity, in relation
to this controversy, as being either needless or
fruitless. --Waterland.
[1913 Webster]

Even our blessed Savior's preaching, who spake
as never man spake, was ineffectual to many.
--Bp.
Stillingfleet.
[1913 Webster] -- {Use"less*ly}, adv. --
{Use"less*ness}, n.
[1913 Webster]

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  • Helium - Wikipedia
    Helium (from Ancient Greek: ἥλιος, romanized: helios, lit 'sun') is a chemical element; it has symbol He and atomic number 2 It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table
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  • Helium | He (Element) - PubChem
    Helium is a chemical element with symbol He and atomic number 2 Classified as a noble gas, Helium is a gas at 25°C (room temperature) 1s 2 B Cordero, V Gómez, A E Platero-Prats, M Revés, J Echeverría, E Cremades, F Barragán, S Alvarez, Dalton Trans 2008, 21, 2832-2838 DOI:10 1039 b801115j PMID:18478144 1 S 0
  • Helium | Definition, Properties, Uses, Facts | Britannica
    Helium is a chemical element, an inert gas of Group 18 (noble gases) of the periodic table The second lightest element, helium is a colorless, odorless, and tasteless gas that becomes liquid at -268 9 degrees Celsius
  • Periodic Table of Elements: Los Alamos National Laboratory
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