I think you don't understand what a synonym or an antonym is. A synonym is a word that means the same or a similar thing to another word, while an antonym means the opposite. So exist is both a synonym and an antonym, depending on which word you are relating it to. Exist is a synonym for live, but exist is an antonym for, say, in a sense, the word void.
They can be antonyms (opposite meanings), not synonyms.
Antonyms: opposite. Synonyms: similar.
Synonyms: moving Antonyms: Fixed, Stationary
there is no synonyms or antonyms for convection current
go on www.synonym.com 4 synonyms & antonyms
Synonyms. Synonyms are words the same in meaning and antonyms are opposites
They are synonyms. Synonyms have similar meanings, antonyms have opposing meanings.
they are closer to synonyms than antonyms, although they are not direct synonyms.
Antonyms. Antonyms = Opposites Synonyms = Same Meaning
No. Synonyms is meanings of a word where as Antonyms is the opposite of a word
synonyms: rabbit, bunny, leporid Antonyms: this is animal
Synonyms: rule & overpower . Antonyms: follow & serve