然り気ない[sarigenai] nonchalant
然う然う[sousou] so long
然して[soshite] and
亜爾然丁[aruzenchin] Argentina
闇然[anzen] dark

依然[izen] still
依然として[izentoshite] still
一目瞭然[ichimokuryouzen] apparent
隠然[inzen] latent power
果然[kazen] as was expected

鏗然[kouzen] emitting a shrill sound (musical instrument, metal, stone)
鏗々[koukou] the ringing out of bells or chimes

鏗鏘[kousou] the resoudning sound of bells, musical instruments, stones being struck, etc.