maladroit

Synonyms: all thumbs blundering bumbling bungling clunky floundering gauche halting heavy-handed inept inexpert klutzy lumbering stumbling two left feet ungraceful unhandy unskillful

Antonyms: able capable skillful

Synonyms: brash gauche impolitic inconsiderate inelegant insensitive thoughtless undiplomatic untactful untoward

Antonyms: diplomatic nice sensitive tactful