Significant
/sɪɡˈnɪ.fɪ.kənt/
noun
That which has significance; a sign; a token; a symbol.
adjective
Signifying something; carrying meaning.
“a significant word or sound; a significant look”
Having a covert or hidden meaning.
Having a noticeable or major effect; notable.
“That was a significant step in the right direction.”
Synonyms: important