the chance of something happening; how likely something is to happen synonym probability There is very little likelihood of that happening. In all likelihood (= very probably) the meeting will be cancelled. The likelihood is that (= it is likely that) unemployment figures will continue to fall. This reduces the likelihood that the treatment will be successful.Extra examples Is their any likelihood of our getting our money back? Staff have to calculate continuously the likelihood of danger. Taking regular exercise reduces the likelihood of a heart attack. There’s every likelihood that she’ll be able to help us. This shouldn’t affect the likelihood of you getting the job. Without a guide, there seemed little likelihood of reaching our goal. skills that will improve their likelihood for success in college In all likelihood the meeting will be cancelled. The likelihood is that unemployment figures will continue to fall.