-less
lacking
Usage
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feckless
Someone who is feckless is incompetent and lacks the determination or skill to achieve much of anything at all in life.
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listless
When you are listless, you lack energy and interest and are unwilling to exert any effort.
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hapless
A hapless person is unlucky, so much so that a stream of unfortunate things has happened and continues to happen to them.
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artless
When someone speaks in an artless fashion, they are without deception; when someone acts artlessly, they are being totally natural.
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fruitless
A fruitless effort at doing something does not bring about a successful result.
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ruthless
A ruthless person shows no pity or mercy to an opponent.
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senseless
If you do something senseless, there is no purpose or good reason for doing it; it is also often harmful or foolish.
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pointless
If someone does something that is pointless, there is no reason behind or meaning for doing it.
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aimless
aimlessly drifting
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blameless
free of guilt
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defenseless
lacking protection or support
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effortless
requiring or apparently requiring no effort
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graceless
lacking graciousness
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groundless
without a basis in reason or fact
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lifeless
deprived of life
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merciless
having or showing no mercy
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mirthless
lacking mirth
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motherless
having no living or known mother
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peerless
eminent beyond or above comparison
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pitiless
without mercy or pity
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weightless
having little or no weight or apparent gravitational pull
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witless
(of especially persons) lacking sense or understanding or judgment
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