Synonyms: embarrassing, tricky, problematic, difficult, thorny, complex
Antonym: straightforward
Synonyms: uncomfortable, embarrassed, out of your depth, tongue-tied, self-conscious, discomfited, gauche, inept, discomforted, ill at ease, uneasy
Antonym: comfortable
Awkward is a good choice of words by Jack with this section of some
synonyms and antonyms of awkward.
Edit: this reply is an awkward reading.