EnglishMain Dictionary
telling
Universal Words
adjective
1 having a strong or important effect; effective:
a telling argument / criticism * Although he didn't score a goal, Zola made a telling contribution to the game.
2 showing effectively what sb/sth is really like, but often without intending to:
The number of homeless people is a telling comment on the state of society.
tellingly adverb:
He tellingly took a seat next to his secretary and not next to his wife.