Answer: See explanation
Step-by-step explanation:
1) shuttle - wooden tool used for weaving
2) Obstinacy - unwillingness to change
3) Descendants - people who come after
4) Indignantly - anger over an injustice
5) Obscure - not well known
Obscure means something that isn't well known or not discovered.
6) strive - compete
Strive means to compete or can also be to make a great effort in order to achieve a particular thing.