Retrieve a list of antonyms (words with opposite meanings) for any English word. Perfect for writing tools, vocabulary builders, educational apps, and natural language processing applications.
{
"status": "ok",
"error": null,
"data": {
"word": "happy",
"language": "en",
"antonyms": [
"sad",
"unhappy",
"miserable",
"depressed",
"glum"
]
}
}






Retrieve a list of antonyms (words with opposite meanings) for any English word. Perfect for writing tools, vocabulary builders, educational apps, and natural language processing applications.
A single authenticated GET with the location you care about — no SDK required.
GET /v1/antonym?query=… x-api-key: your_key
Each request pulls from multiple upstream sources and computes the derived fields for you.
One structured object, typically under 200 ms — ready to render.
{ word, language, antonyms, … }
Real applications shipping on this endpoint today — each with the numbers that made it worth wiring up.
See every use caseProvide instant antonym suggestions while writing. Help users find contrasting words without leaving their document or breaking concentration.
Build vocabulary exercises that teach words in antonym pairs. Create flashcards, quizzes, and games that reinforce word meanings through opposites.
Copy a working request, or install a typed SDK. Same endpoint, same key.
const res = await fetch("https://api.apiverve.com/v1/antonym?word=happy", {
headers: { "x-api-key": "YOUR_API_KEY" },
});
const { data } = await res.json();
console.log(data);Every related API ships with your key — no separate plans, no extra keys, one bill.
See pricingReady-made recipes for Zapier, Make, and n8n — trigger on an event, and the data lands where your team works.
The same key unlocks every other APIVerve endpoint — reach for them when you need them.
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