There are many adjectives that caan start with the letter G, they are:
gallant,
gangling(tall and thin),
gargantuan(enormous,gigantic),
garish(bright),
garrulous(talkative),
gaseous(like gas),
gassy(like gas),
gastric(adj of the stomach),
gauche(socially awkward)不善交際、不圓滑,
gaudy(too bright and showy),
gaunt(ill health or suffering),
gay, general,generative,generic,generous, genetic, genial,genital,genitive,genteel有教養的,gentle,genuine,
Geogian,German,germane, ghastly,ghostly,gibbous凸圓,giddy眩暈,gigantic,荒謬的場面Gilbertian,
gimcrack(worthless),glacial(adj of ice or the ice age),
glad,glaucous(dull greyish green or blue)
glib(what a person speaks isready and smooth,but not sincerely enough)
global,gloomy,glorious,glum憂愁,
gnarled(twisted and rough, covered with knobs),
godless,godlike,godly
golden,good,goodish,goody-goody道學先生
gooey,Gordian難題,gorgeous燦爛、華麗, gory染滿血的
Gothic歌德式建築, graceful,graceless, gracious大方有禮的
gradual,grammatical, grand,grandiloquent誇張的
grandiose宏偉堂皇, granular小粒狀的,
graphic,grateful,grave,greasy,great,greedy,green,
gregarious合群的, grey,gray, greyish,grievous令人痛苦的
grim嚴肅,grisly可怕的,grizzled灰色的, groggy不穩的,
gross粗鄙不雅,grotesque可笑怪誕的, grotty(俚)難看的,
groundless無根據的, grubby骯髒不潔的
gruelling筋疲力竭的, gruesome毛骨悚然,grumpy脾氣壞的
guttural喉間發出的,gymnastic體操的
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參考: Oxford Dictionary
這都是常用的...
good..好
great..好極,偉大的,優秀的
gainful..有利益的,賺錢的,唯利是圖的
galactic..乳汁的,銀河的
gallinaceous..雞類的;家禽的
galling..擦傷人的,使人煩惱的;難堪的
garrulous..饒舌的,潺潺不息的
gaseous..氣體的,氣體狀態的
genealogical..宗譜的;家系的
generous..慷慨的,大方的
genuine..真的;非偽造的;名副其實的
gentle..溫和的;和善的,仁慈的
gigantic..巨人的;巨人似的
glad..高興的,快活的
glamorous..富有魅力的;迷人的
glossy..光滑的,有光澤的,虛有其表的;浮誇的
golden..金色的,金黃色的;黃金般的
grainy..粒狀的,木紋狀的
grand..雄偉的;堂皇的;盛大的
graphical..寫實的;生動的;圖解的
grateful..感謝的,感激的
guidable..可引導的
參考: yahoo字典