noun

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Bad / Small

nub - A small lump or protuberance

To end a call when using old rotary phones, a person would have to place the phone down on the two nubs sticking out on top of the dial.

noun

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Bad / Angry

outburst - A sudden release of strong emotion, usually of anger

Tired of his underperforming employees, the boss let loose with an outburst of anger that shocked everyone.

adjective

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Bad / Strange

Url

obscure - Difficult to understand, interpret, or perceive clearly due to complexity or lack of detail.

The fog obscured the road, making it hard to drive safely.

adjective

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Bad / Dangerous

Url

onerous - Oppressively heavy or troublesome, often involving responsibility or duty.

The manager gave him an onerous task that took the entire week to finish, working late into each night.

noun

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Bad / War

onslaught - A fierce or destructive attack

The unprotected city fell to the onslaught of the attacking aliens.

noun

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Bad / Angry

Url

outrage - A strong feeling of shock or anger, often caused by something unjust or offensive.

The decision to cut down the ancient tree sparked public outrage.

noun

See verb

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Other / Wet

ooze - The sluggish flow of a fluid

The expensive dessert was topped off with a dripping ooze of chocolate.

noun

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Bad / Old

oblivion - The state of being forgotten or destroyed

This year's fad is on everybody's mind, and next year it will have faded into oblivion.

adjective

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Good / Successful

Url

opportune - Happening at a time that is convenient or likely to produce success.

The weather is great, and it's an opportune moment to plant the seeds in our garden.

verb

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Bad / Unfriendly

ogle - To stare at something or someone in a desirous way

Fran felt uncomfortable the way some of the passengers on the subway ogled her diamond necklace.

noun

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Bad / Delay

Url

obstacle - Something that blocks your way so that movement or progress is prevented or made more difficult.

Bill wanted to become a doctor, but a major obstacle that made that goal difficult was that he hated studying.

adjective

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Bad / Old

Url

obsolete - No longer in use, especially because something newer or better has replaced it.

Floppy disks are now completely obsolete in the age of SSD drives and cloud storage.