revealing

• "a telling smile"
• "a telltale panel of lights"
• "a telltale patch of oil on the water marked where the boat went down"

Synonyms

• tellingdisclosing unintentionally something concealed; powerfully persuasive; producing a strong effect; an act of narration; informing by words ; disclosing information or giving evidence about another
• telltale(a)

• "a revealing glance"

Synonyms

• disclosurethe speech act of making something evident
• revelationthe speech act of making something evident ; an enlightening or astonishing disclosure ; communication of knowledge to man by a divine or supernatural agency ; the last book of the New Testament