Definition

The largest or heaviest in size or weight compared to others.

Example

He carried the heftiest box to the truck.

Comparatives & Superlatives

Conversation

Did you see that new weight at the gym?

Yeah, I did! It's the heftiest one they have.

I can't believe how heavy it looked!

Right? I doubt I could even lift it.

Synonyms & Antonyms

Root Explanation

Heftiest is formed from "hefty" (from the dialectal English "hefty", meaning heavy or weighty) and the suffix "-est" (meaning the most). The word "heftiest" means the most heavy or weighty among a group.

Memory Tip

Think of something that is the 'most heavy' — 'hefty' means heavy, and '-est' indicates the superlative form.

Visually Confused Words