# heaviest

/ˈhɛviəst/ (US) · /hˈɛviəst/ (UK) · CEFR A2 · Adjective

Source: https://englishreference.com/word/heaviest
Updated: 2026-05-06

## Definition

the one that weighs the most compared to all others in a group. You use this to describe the object with the greatest weight or the most power.

For teachers: the superlative form of 'heavy'; indicates the maximum weight, intensity, or density within a specific set.

## Examples

- This blue suitcase is the heaviest one in the car.
- The heaviest rainfall of the decade caused the local river to overflow its banks last night.
- Engineers must ensure the bridge's foundation can support the heaviest vehicles expected to traverse the span during peak traffic hours.

## Pitfalls

- Not "the most heaviest" but "the heaviest" — One-syllable adjectives ending in 'y' form the superlative by changing 'y' to 'i' and adding '-est'; they do not use 'most'.

## Usage notes

- Superlative form of 'heavy'; typically preceded by the definite article 'the'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.