# space cadet

> English word · Noun

## Definitions
1. A person in training to be a (generally military) astronaut.
2. One who deals with reality in a way consistent with being under the influence of (or "spaced out on") drugs.
3. One who forgets, daydreams, or otherwise is distracted from reality more often than most.

## Etymology
From the title of the 1948 science fiction novel Space Cadet, by Robert A. Heinlein.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/space-cadet