important

adj.

[1]	significant , of import , consequential , critical , material , vital , urgent , portentous , weighty , grave , substantial , momentous , signal
[2]	leading , significant , prominent , notable , noted , noteworthy , worthy , eminent , distinguished , respected , high-ranking , top-level , high-level , superior , outstanding , foremost , conspicuous , impressive
[3]	influential , crucial , effective , well-connected , powerful , formidable , mighty , impressive
[4]	authoritative