BUILD YOUR VOCABULARY

Word of the Day

Discover a useful word, hear its pronunciation and use it in a sentence.

YOUR WORD COLLECTION

Find your next word.

380 words to explore

Related to “random”. Remove related-word filter

Choose a letter to browse the full collection. Numbers show how many words are available.

1 word

Adjective

IPA /ˈɑːbɪtrəri/

Based on someone's choice or chance rather than a clear reason, rule or fair system.

See example sentence

The landlord's arbitrary restrictions left us unsure what was allowed.

PUT IT INTO PRACTICE

Choose a word, say it aloud and write a sentence about your day. Then try a short practice to check your understanding.