probing
[noun]
Synonyms: inquiry, delving, inquest, inquisition, investigation, probe, quest, research

[TahlilGaran] English Synonym Dictionary ▲

prob‧ing /ˈprəʊbɪŋ $ ˈproʊ-/ adjective

1. designed to find things out, especially things that other people do not want you to know:
probing questions

2. watching carefully and intelligently:
his probing eyes
—probingly adverb

[TahlilGaran] Dictionary of Contemporary English ▲