Unlike the other capital sins, sloth is a sin of omission, being a lack of desire and/or performance. It may arise from any of the other capital vices; for example, a son may omit his duty to his father through anger.
One example of sloth is plagiarism.
In Christianity, Sloth is about a person not wanting to work, because of their lack of motivation. The person will be physically inactive and neglect what God has said. Very often, this will lead to resources being wasted.
In this sense sloth is directly opposed to charity. It is then a mortal sin unless the act be lacking in entire advertence or full consent of the will. The trouble attached to maintenance of the inhabiting of God by charity arouses tedium in such a person.
The Scriptures have many references to the sloth and slothfulness, and the Bible uses the word “sluggard” in the same vein in Proverbs 6:6-9 (King James version): Go to the ant, thou sluggard; consider her ways, and be wise:  Which having no guide, overseer, or ruler,  Provideth her meat in the summer, and ...
When you're slothful, you don't feel like doing much of anything. Slothful people tend to sleep too much and lie around on the couch. Being slothful at work could get you fired, and slothful students won't do well at school. The furry kind of sloth is slow due to its nature, but a slothful person should get a move on!
Sloth is a habitual disinclination to exertion. This sin is unique in that it's the only one characterized by a lack of something rather than an abundance of something. For your slothful ways, your eternal home in hell will be a pit of snakes (a pit of sloths would be better).
Sloth is considered one of the deadly sins because it reflects a complete disinclination toward care, love, contribution, and faith—virtues that open upon our true dignity, purpose, and eternal destiny.
Examples of mortal sins include murder, adultery, blasphemy, and idolatry. Some extreme instances of these sins, such as violence against the pope, can even result in ex-communication from the church which is a severe punishment that excludes a person from the sacraments and other aspects of the faith.
When fighting sloth one must remain active in the spiritual life; anytime the temptations to sloth and spiritual lethargy begin to coat the soul like wet grey blankets, one should remove themselves immediately from the temptations by running to Christ in prayer, or by occupying themselves in some activity.
Pride (superbia), also known as hubris (from Ancient Greek ὕβρις) or futility. It is considered the original and worst of the seven deadly sins on almost every list, the most demonic. It is also thought to be the source of the other capital sins. Pride is the opposite of humility.
Perseverance, the opposite of Sloth, is to push through difficult circumstances and overcome the odds.
Yet sloth is a sin against God, and not against the time clock or productivity. The fact is that it's possible to work too much, in a way that's not in keeping with our dignity and ultimate good. The essence of sloth is a failure to fulfill one's basic duties. Surely one such duty is the human vocation to work.
Antidote: Vanquish Sloth with DILIGENCE
The virtue of diligence is the antidote to acedia, and it helps us to form good spiritual habits and stick with them, even when we really don't want to.
Sloth and laziness, are voluntary, with this difference, that sloth, implies, utter in|activity, an absolute aversion to work; laziness, an inclination, but, a fear of trou|ble and fatigue: whereas, sluggishness, is, often, involuntary; proceeding, sometimes, from constitution, and, is discovered, by its dull, heavy ...
We should relax now and then, but sloth is a matter of throwing our time away and neglecting to fulfill our God-given duties. We can also use sloth to procrastinate with God. According to the Catechism of the Catholic Church (no. 2094) spiritual sloth is one of the ways that we can sin against God's love.
The unpardonable sin is blasphemy against the Holy Spirit. Blasphemy includes ridicule and attributing the works of the Holy Spirit to the devil.
According to Roman Catholic theology, the seven deadly sins are the seven behaviours or feelings that inspire further sin. They are typically ordered as: pride, greed, lust, envy, gluttony, wrath, and sloth.
Our Sunday Mass obligation is based on the Third Commandment: “Remember the sabbath day — keep it holy” (Ex 20:8). All of the commandments of God are serious matter, so to deliberately miss Mass on Sunday — without a just reason — would objectively be considered a mortal sin.
According to many theologians, this is why sloth is the worst of the seven sins. While the other sins grab at life and gobble it up, sloth just doesn't care. At first, sloth seems to be a straightforward kind of sin — sloth equals laziness, nothing more, it seems.
In fact, more than half of all sloth deaths are due to predators killing them while travelling to and fro their low latrines.
Harlequin, also known as King, the Fairy King, or the Grizzly Sin of Sloth, is one of the main protagonists of the anime/manga/light novel series The Seven Deadly Sins. He is a member of the Seven Deadly Sins, the king of the Fairy Realm, and husband of Diane.
There are six things the Lord hates, seven that are detestable to him: haughty eyes, a lying tongue, hands that shed innocent blood, a heart that devises wicked schemes, feet that are quick to rush into evil, a false witness who pours out lies and a person who stirs up conflict in the community.
In Christianity, it is considered a sin if the excessive desire for food causes it to be withheld from the needy. Some Christian denominations consider gluttony one of the seven deadly sins.