IPA: /nɒn.kəˈmɪt.əl/
KK: /nɑnˈkəmɪtəl/
Not expressing a clear opinion or decision about something; remaining neutral or vague.
Her response was noncommittal, leaving everyone unsure of her true feelings.
Noncommittal → It is formed from "non-" (meaning not) and "committal" (from Latin "committere", meaning to entrust or to commit). The word describes a state of not committing or not being bound to a particular decision or course of action.
Think of 'not' ('non-') being involved in 'committing' ('committere') to something — that's why noncommittal means not making a commitment.