uncompress Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to restore data to its original size. Example Sentence The computer program can uncompress files. More Example Sentences You need to uncompress the data first. Synonyms expand; decompress; inflate Antonyms compress; shrink; reduce Hear It! Say It! Write It! uncompress Switch to cursive Start Share with your friends: