evasive
ɪˈveɪsɪv/
adjective
tending to avoid commitment or self-revelation, especially by responding only indirectly.
"she was evasive about her phone number"
synonyms: prevaricating, elusive, ambiguous, equivocal, equivocating, indefinite, non-committal, vague, indeterminate, imprecise, inexact, indistinct, inexplicit;