important

How to sign: of great significance or value
"important people"; "the important questions of the day";

See also: significant, valuable, essential

Similiar / Same: of import

important

How to sign: of extreme importance; vital to the resolution of a crisis
"a crucial moment in his career"; "a crucial election"; "a crucial issue for women";

See also: decisive, essential, critical

Similiar / Same: crucial

important

How to sign: having authority or ascendancy or influence
"an important official"; "the captain's authoritative manner";

Similiar / Same: authoritative

important

How to sign: important in effect or meaning
"a significant change in tax laws"; "a significant change in the Constitution"; "a significant contribution"; "significant details"; "statistically significant";

See also: of import, meaningful

Similiar / Same: significant