WordDream · Your AI dictionary

hermetic

English → EnglishformalliteraryInstant · from the shared dictionary
Illustration of "hermetic": The word "hermetic" describes something that is completely airtight or sealed off from the outside w

What does "hermetic" mean?

The word "hermetic" describes something that is completely airtight or sealed off from the outside world. Think of a vacuum-sealed jar or a glass container that prevents air, moisture, or light from entering; physically, it implies a perfect, impenetrable seal. Metaphorically, it refers to ideas or social circles that are insular, mysterious, or difficult for outsiders to understand. When a person or a group is described as hermetic, it suggests they are reclusive or possess secret knowledge that is intentionally kept separate from common discourse.

"hermetic" in conversation

Discussing a high-end watch

The watch movement is encased in a hermetic chamber to protect it from moisture.

The watch movement is encased in a hermetic chamber to protect it from moisture.

That explains why it’s so expensive to service.

That explains why it’s so expensive to service.

Used here in its literal, technical sense regarding physical sealing.

Describing an exclusive academic circle

Their research group is quite hermetic; they rarely publish their findings.

Their research group is quite hermetic; they rarely publish their findings.

It’s almost impossible to get an invite to their seminars.

It’s almost impossible to get an invite to their seminars.

Used here to describe social and intellectual isolation.

"hermetic" in a sentence

  1. The container is hermetic and keeps the food fresh for months.

    The container is hermetic and keeps the food fresh for months.

  2. He lived a hermetic life, rarely leaving his small apartment or speaking to neighbors.

    He lived a hermetic life, rarely leaving his small apartment or speaking to neighbors.

  3. The poet’s later work is notoriously hermetic, filled with obscure symbols that only he could decipher.

    The poet’s later work is notoriously hermetic, filled with obscure symbols that only he could decipher.

Not another dictionary

An AI-native multilingual dictionary: decode the words other dictionaries can't handle.

WordDream explains every word the way a teacher would, with real-life scenes, graded examples, audio and a picture. It also covers what traditional dictionaries miss: names, places, proper nouns, internet slang, and words that don't translate.

And it isn't just English. Look up words in any language, keep a multilingual Notebook, and turn your saved words into stories with Spin a yarn.

Free account · sign in to use features

Browse the whole set in Everyday & Curious Words.

Explained by WordDream, an AI-native multilingual dictionary.