Intermediate (B1)
IPA: /kənˈsɪdərəbl/
KK: /kənˈsɪdərəbəl/
Definition
Large in size, amount, or degree; significant enough to be noticed or considered important.
Example
The project required a considerable amount of time and effort to complete.
Conversation

Did you see the changes they made to the park?

Yeah, I think they put in a considerable amount of effort.

It looks so much better now, right?

Absolutely! The improvements will benefit the whole community.
Synonyms & Antonyms
Synonyms
substantial
significant
ample
Antonyms
insignificant
minimal
trivial
Definition
A large amount or degree of something.
Example
She has made a considerable effort to improve her skills.
Conversation

Did you know that he has made a considerable amount of money from his investments?

Really? That's impressive!

Yeah, I heard it's a considerable increase compared to last year.
Root Explanation
Considerable → It is formed from "con-" (meaning together) and "siderare" (meaning to star or to regard). The word "considerable" refers to something that is worthy of attention or regard, often implying a significant amount or degree.
Memory Tip
Think of 'regarding' ('siderare') something 'together' ('con-') — that's why considerable means something that deserves significant attention.
Visually Confused Words
unconsiderable
inconsiderable
inconsiderably
ponderable
unconsiderate
unconservable
inconsiderate
inconsiderableness