Fetching details from the dictionary...

purposely (of something needless, unexpected or seemingly counterproductive, etc.); daringly (doing something); deliberately; intentionally
not necessarily; not particularly; not especially
敢えて反対の意見を述べることにしました。
I dared to express an opposing opinion.
敢えて意見を述べる必要がありました。
It was necessary to dare to express my opinion.
敢えて危険を冒す必要はないと思います。
There's no need to dare take risks.