ˈnail-ˌbiting adjective [only before noun]
extremely exciting because you do not know what is going to happen next:
The match went all the way to a nail-biting finish.
some nail-biting moments near the end of the movie

[TahlilGaran] Dictionary of Contemporary English ▲

thrilling /ˈθrɪlɪŋ/ very exciting
gripping a gripping film, story etc is very exciting and interesting
dramatic used about something that is exciting to watch or hear about as it happens:
the dramatic events of the past week
exhilarating /ɪɡˈzɪləreɪtɪŋ/ making you feel happy, excited, and full of energy:
an exhilarating ride
nail-biting very exciting, especially because you do not know what is going to happen next:
a nail-biting finish

[TahlilGaran] English Thesaurus ▲

nail-biting
a nail-biting event or period of time makes you feel very nervous, usually because you are waiting for something important to happen.
The teams were very evenly matched and played a close game right up to the nail-biting finish.
(always before noun)

[TahlilGaran] English Idioms Dictionary ▲