space cadet space biology • space capsule · · · Info · Definitions · Characters · · space cadet · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) someone who seems unable to respond appropriately to reality (as if under the influence of some narcotic drug). Synonyms: space cadet. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074