uncertain vs certain

uncertain and certain both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uncertain	No	Yes	No	No
certain	No	Yes	No	No

uncertain (adjective)	certain (adjective)
not established beyond doubt; still undecided or unknown	established beyond doubt or question; definitely known
lacking or indicating lack of confidence or assurance	having or feeling no doubt or uncertainty; confident and assured
not certain to occur; not inevitable	certain to occur; destined or inevitable
not established or confirmed	established irrevocably
ambiguous (especially in the negative)	exercising or taking care great enough to bring assurance
not consistent or dependable	definite but not specified or identified
subject to change	reliable in operation or effect