Fetching details from the dictionary...

odious; hateful; detestable; horrible
(speaking ironically) darling
彼の自慢話が憎らしいほど気に障る。
His bragging is annoying to the point of being hateful.
いたずらばかりする弟の態度が憎らしかった。
My younger brother's attitude of constantly playing pranks was detestable.
子供の無邪気な失敗は憎らしくない。
An innocent mistake by a child is not hateful.