From King Dictionary of Contemporary English uncertain un‧cer‧tain / ʌnˈsɜːtn $ -ɜːr- / ●●○ adjective 1 [not before noun ] NOT SURE feeling doubt about something SYN unsure uncertain whether/how/what etc He was uncertain how much further he could walk. uncertain about/of I was uncertain about what to do next. 2 UNCERTAIN not clear, definite, or decided SYN unclear it is uncertain whether/how/what etc It is uncertain how likely this is to occur. My whole future now seemed uncertain. 3 → in no uncertain terms 4 if someone walks in an uncertain way, they seem as though they might fall SYN unsteady She took a few uncertain steps forward. — uncertainly adverb Examples from the Corpus uncertain • A spokesman said the governor's travel plans were still uncertain. • Even where links were still in place, their future remained uncertain. • More typical is the partial cure where the doctors could say that the treatment was worthwhile but the future uncertain. • The long-term benefits of the treatment are extremely uncertain. • The situation on the island is still very uncertain and the army is on full alert. • If you hesitate the secretary will sense that you are uncertain and wonder whether to put you through or not. • The company faces a highly uncertain future. • They were worried about their son's uncertain future. • Indeed, we shall stress the importance of work organization in change agendas geared towards securing competitive advantage in uncertain market environments. • Doctors are uncertain of what self-government would mean in detail. • She took a few uncertain steps forward. • She would write, when she was away from here, tell him in no uncertain terms exactly what she thought of him. • The economic outlook is so uncertain that I would think carefully before investing any money. • Even now, city staff appears uncertain what can be built on the property. uncertain whether/how/what etc • She felt resolved in spirit but uncertain how best to proceed. • Ford is uncertain whether he will get an offer or even accept one if it comes. • It was very uncertain whether Henry would be able to retain the crown he had seized. • Teacher contract negotiations have been on hold for months because school officials were uncertain how much money they had. • It is still uncertain how these possible burgi operated. • Having never dealt with a statistical neural network, we were uncertain how we could verify the integrity of the network. • It is uncertain whether words alone can amount to an assault. • Are you uncertain whether you have enough of the right kind of insurance? it is uncertain whether/how/what etc • He suffers from severe fits. It is uncertain whether he recognises his carers.