uncertain (Adjective) — Lacking or indicating lack of confidence or assurance. ex. "uncertain of his convictions" ex. "moving with uncertain steps" ex. "an uncertain smile" ex. "touched the ornaments with uncertain fingers"
uncertain (Adjective) — Not established beyond doubt; still undecided or unknown. ex. "a manuscript of uncertain origin" ex. "plans are still uncertain" ex. "changes of great if uncertain consequences" ex. "without further evidence his story must remain uncertain" ex. "an uncertain future"
uncertain (Adjective) — Not established or confirmed. ex. "his doom is as yet uncertain"
uncertain (Adjective) — Not certain to occur; not inevitable. ex. "everything is uncertain about the army" ex. "the issue is uncertain"
uncertain (Adjective) — Subject to change. ex. "the weather is uncertain"
uncertain (Adjective) — Not consistent or dependable. ex. "an uncertain recollection of events" ex. "a gun with a rather uncertain trigger"
uncertain (Adjective) — Ambiguous (especially in the negative). ex. "she spoke in no uncertain terms"