adjective

lacking grace, elegance, or charm.

he wanted to speak so as not to seem sullen or graceless

gauche,maladroit,inept,socially awkward,socially inept,socially unsure,lacking in social graces,unpolished,unsophisticated,uncultured,uncultivated,unrefined,clumsy,awkward,ungainly,ungraceful,inelegant,uncoordinated,gawky,gangling,bumbling,blundering,lumbering,tactless,thoughtless,inconsiderate,inexperienced,raw,uneducated,unworldly,nervous,shy,bashful,nervy,cack-handed,ham-fisted,ham-handed,butterfingered