1.Definition: open to question
"Aliens of equivocal loyalty", "His conscience reproached him with the equivocal character of the union into which he had forced his son"
2.Definition: open to two or more interpretations; or of uncertain nature or significance; or (often) intended to mislead
"An equivocal statement", "The polling had a complex and equivocal (or ambiguous) message for potential female candidates", "The officer's equivocal behavior increased the victim's uneasiness", "Popularity is an equivocal crown", "An equivocal response to an embarrassing question"
3.Definition: uncertain as a sign or indication
"The evidence from bacteriologic analysis was equivocal"