I'm afraid listing 500 examples of synonyms and antonyms would be too lengthy for this format. Could you provide specific words that you'd like to know synonyms and antonyms for?
Huge big
Thesaurus.
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Synonyms - Attract, Tempt, Allure, Invite, Coax, Entice. Antonyms - Repel, Deter, Repulse. These are for beckon.
One at a time, please.
Synonyms.
Synonyms are words that have similar or the same meaning. Eg: Synonyms of open are accessible, unbolted, unlocked, unshut etc. Antonyms are words that have opposite meanings. Eg: Antonyms of open are close, fastened, locked, shut etc.
They can be antonyms (opposite meanings), not synonyms.
Thesaurus.
thesaurus
Some synonyms for agitator are disruptor, dissident, malcontent, anarchist, advocate. Some antonyms for agitator are conciliator, peacemaker, conservative, moderate, arbitrator.