87 entries under adjective topic. ×

14
trial(noun, challenge, match, examination)
10
proving(noun, verb, meet, challenge)
7
test(noun, struggle, examination, analysis)
6
trying(noun, verb, meet, tough)
2
analytical
2
demanding(tough, severe, difficult, violent)
2
effortful(tough, difficult, awkward, grim)
2
exacting(tough, severe, difficult, violent)
2
experimental(suspect, tentative, probationary, investigative)
2
exploratory(tentative, experimental, probationary, investigative)
2
hard(tough, severe, difficult, violent)
2
laborious(tough, severe, difficult, violent)
2
pilot(tentative, experimental, probationary, investigative)
2
probationary(balloon, tentative, experimental, investigative)
2
provisional(tentative, experimental, probationary, investigative)
2
tentative(experimental, probationary, investigative, examining)
1
arduous(tough, severe, difficult, violent)
1
awkward(difficult, demanding, grueling, problematical)
1
burdensome(tough, difficult, awkward, grim)
1
challenging(verb, tough, difficult, awkward)
11 years ago|8.9k views|share |citing 
APASmart Define. (2015). testing thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/testing/thesaurus/synonyms
ChicagoSmart Define. 2015. "testing thesaurus" https://smartdefine.org/testing/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, testing thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/testing/thesaurus/synonyms>.
MLASmart Define. "testing thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/testing/thesaurus/synonyms>