Definition

The most complaining or grumpy; showing the highest level of dissatisfaction or annoyance.

Example

Out of all the kids, he was the grumbliest, always finding something to complain about.

Comparatives & Superlatives

Conversation

I think my cat has been the grumbliest lately.

Really? What’s been bothering him?

He just keeps staring at me like he wants something.

Maybe he’s just demanding more treats or attention!

Synonyms & Antonyms

Root Explanation

The word 'grumbliest' is derived from 'grumble' (of uncertain origin, possibly imitative of the sound of grumbling) and the superlative suffix '-iest' (meaning most). Therefore, 'grumbliest' refers to the state of being the most grumbling or complaining.

Memory Tip

Think of someone who is always making grumbling sounds — that's why 'grumbliest' means the most grumbling.

Visually Confused Words