Trying to find opposite word for are certain of in English? No problem. Our site contains antonyms of are certain of in 14 different contexts. We have listed all the opposite words for are certain of alphabetically.
PastTenses is a database of English verbs. One can check verbs forms in different tenses. Use our search box to check present tense, present participle tense, past tense and past participle tense of desired verb.