[すごい, sugoi] (adj-i) (1) (uk) terrible; dreadful; (2) amazing (e.g. of strength); great (e.g. of skills); wonderful; terrific; (3) to a great extent; vast (in numbers); (P)
[すごく, sugoku] (adv) (See 凄い) awfully; very; immensely
[すごくない, sugokunai] (exp) (uk) cool! (only when said or written in a questioning tone); incredible; unbelievable
[すさまじい, susamajii] (adj-i) terrific; fierce; terrible; tremendous; dreadful; awful; amazing; absurd; cutthroat; intense; (P)
[すごむ, sugomu] (v5m, vi) to threaten
[せいえん, seien] (adj-na, n) weirdly beautiful
[すごわざ, sugowaza] (n) amazing trick; amazing skill
[せいさん, seisan] (adj-na, n) ghastly; gruesome; appalling; lurid
[せいぜつ, seizetsu] (adj-na, n) extremely; violently
[すごもんく, sugomonku] (n) intimidating language
[すごみ, sugomi] (n) weirdness; ghastliness; dreadfulness
[せいれつ, seiretsu] (adj-na) fierce
[すごうで, sugoude] (n, adj-no) (1) go-getter; live wire; resourceful person; wizard; virtuoso; (n) (2) remarkable ability; mastery; brilliant technique
[ものすごい, monosugoi] (adj-i) earth-shattering; staggering; to a very great extent; terrible; frightful; horrible; (P)
[せいそう, seisou] (adj-na, n) pathetic; dreadful