a changeable climate.
a gun with a rather uncertain trigger.
a manuscript of uncertain origin.
an uncertain future.
an uncertain recollection of events.
an uncertain smile.
changes of great if uncertain consequences.
everything is uncertain about the army.
his doom is as yet unsealed.
moving with uncertain (or unsure) steps.
plans are still uncertain.
she spoke in no uncertain terms.
the issue is uncertain.
the weather is uncertain.
touched the ornaments with uncertain fingers.
uncertain of his convictions.
unsettled weather with rain and hail and sunshine coming one right after the other.
unsure of himself and his future.
without further evidence his story must remain uncertain.