insincere Antonyms

sincere as right as rain whole-souled veracious unsophisticated unfeigned unbeguiling unaffected truthful trustworthy true-hearted true strong straightforward single-hearted serialize nationalistic straight-from-the-shoulder as good as one's word as good as your word fairly straightforward very true as pure as the driven snow unstilted unselfconscious on the level guilt-free fair dinkum above board wholehearted heart-to-heart man-to-man simple-hearted reliable realistic faithful ethical earnest direct devout dependable decent dear credible controlled casual candid authentic artless forthright