at sea Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition preposition. in a state of confusion or uncertainty. Example Sentence The ship was at sea. OR He was at sea as to how to answer the question. More Example Sentences She was at sea with the new rules. Synonyms confused; lost; puzzled Antonyms certain; clear; focused Hear It! Say It! Write It! at sea Switch to cursive Start Share with your friends: