Tom wrote a book about a young man who, in the distant future, falls in love with an extraterrestrial girl, during an invasion of the earth.
Source: tatoeba (2857245)
Ranked by relevance and common usage.
Keep "extraterrestrial" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Choose a synonym only if it keeps the core idea of "extraterrestrial" intact in the sentence you are editing.
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
After choosing a replacement for "extraterrestrial", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "extraterrestrial" or choose a simpler alternative from the closest-match group.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
12 total sentences available.
Tom wrote a book about a young man who, in the distant future, falls in love with an extraterrestrial girl, during an invasion of the earth.
Source: tatoeba (2857245)
I've heard that they've found an extraterrestrial object on the moon.
Source: tatoeba (3678675)
Dr. Carl Sagan helped design the plaques carried by both Pioneer 10 and Pioneer 11. These plaques, bearing the images of a man and a woman as well as a diagram showing Earth's location in the Galaxy, may one day be found by an extraterrestrial civilization.
Source: tatoeba (3958989)
Though some have been claiming ownership of extraterrestrial land, to include the Moon, are these claims bona fide?
Source: tatoeba (4586196)
Showing 4 of 12 available sentences.
Closest matches include alien, alien, alien beings, aliens, arcane.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.