ρήμ. αντικρούω, ματαιώ, εμποδίζω

ουσ. κάθισμα κωπηλατού

The following video provides you with the correct English pronunciation of the word "thwarts", to help you become a better English speaker.

(Lex**) ανατρέπει

Ρημ. ματαιώνω την εκτέλεση, ανατρέπω
Ουσ. ματαίωση, ανατροπή,

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Ουσ. σέλμα πλοίου, οι θέσεις των κωπηλατών
Επίθ. λοξός, πλάγιος, διαγώνιος

(v.) = frustrar, obstaculizar, desarticular, impedir, prevenir.
Ex: A public library's design can go far in either reinforcing or thwarting the intimacy of reading and in determining its success -- functionally, aesthetically and financially.
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* thwart + effort = frustrar un esfuerzo.