# groggy

/ˈɡɹɑɡi/ (US) · /ɡɹˈɒɡi/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/groggy
Updated: 2026-10-18

## Definition

feeling sleepy, slow, and a little unsteady, often just after you wake up or when you are ill. You use it when your head feels heavy and thinking feels hard.

For teachers: dazed, weak, or unsteady from lack of sleep, illness, or the effects of alcohol or drugs. Describes a temporary physical state and often follows a linking verb such as feel.

## Examples

- I feel groggy after a short nap.
- She feels groggy every morning until she drinks coffee and takes a short walk.
- Still groggy from the overnight flight, he struggled to focus on the conference presentation and kept losing his place.

## Synonyms

drowsy, woozy

## Antonyms

alert, refresh, energetic

## Usage notes

- Typically used predicatively after 'feel', 'look', or 'seem'; gradable with 'very', 'a little', or 'slightly'.

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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.