wonderful, thankful, helpful...
technical, ethical, (规则仿佛应该是al结尾,而不只是cal,比如final, international, )...
...
interesting, exciting, lasting, ...
capable, negotiable, lovable, ...
tired, worried, ...
一时间只能想起来这么些。
ful: helpful beautiful grateful meaningful ……
(c)al: musical several
(t)ive: active massive
ing: interesting exciting pleasing surprising ……
able: comfortable hospitable
ed: worried interested excited ……