testing

adjective
tes·ting
/ˈtɛs.tɪŋ/

difficult; tough.

Example

“A testing time lies ahead for the new administration.”

Related words

testingly
untesting

Example sentences

“I'm testing whether the language detection works again.”
Tatoeba · TRANG · CC0
“We have to send the samples in for testing.”
Tatoeba · ddnktr · CC0

Where this comes from

This definition is adapted from “testing” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.