Daydream about nothing in particular. What does spaced-out mean? adj., adj spa´tial. I meant to buy batteries when I went to the store, but I spaced it out. so that they are a particular time or distance apart". American Heritage® Dictionary of the English Language, Fifth Edition. Your user interface is telling me (falsely) that this example doesn't contain "space out." Actually, you can find the definition of "space out" in a dictionary, e.g., Macmillan defines it like this: "to arrange objects, events, activities, etc. Generally, 'spacing out' means that you are not in the moment, that your mind is somewhere else. Spaced-out definition, dazed or stupefied because of the influence of narcotic drugs. Ever spaced out over a long, difficult book and realize you haven’t read a single word in 10 minutes? *** Dear UD staff, You need to fix your software. 3. the areas of the universe beyond the earth and its atmosphere. See more. 2. an actual or potential cavity of the body. Distracted, inattentive, dazed, etc. Spaced-out definition: Someone who is spaced-out feels as if nothing around them is real , usually because they... | Meaning, pronunciation, translations and examples Define spaced. Find more similar words at wordhippo.com! (adjective) Slang Spaced-out. Another word for spaced-out. adj. Find more ways to say spaced out, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. Another word for spaced out. This use is a bit like a pun because as it suggests you would use spaces to space it out. Find more ways to say spaced-out, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. If you need a programmer who's up to the task, drop me an e-mail and I'll send my resume. spaced synonyms, spaced pronunciation, spaced translation, English dictionary definition of spaced. But there are more serious kinds of spacing out that can be caused by a medical condition. Synonyms for spaced out include spacey, out to lunch, in a fog, zoned out, confused, dazed, bewildered, befuddled, dizzy and dopey. Daydreaming is the most common kind of spacing out and is generally nothing to worry about. space [spās] 1. a delimited area.