Evasive (adjective)

1. Tending to avoid commitment or self-exposure, especially by responding only indirectly.
2. Intending to avoid a particular thing.

Origin:

Early 18th century: from evade, on the pattern of words such as elusive.

Examples:

1. His evasive answers made it difficult to get a straight answer.
2. She was evasive when asked about her plans for the future.
3. The suspect's evasive behavior made the police suspect he was guilty.
4. His evasive attitude made it impossible to have a meaningful conversation with him.
5. The company's evasive maneuvers made it difficult for the regulator to investigate them.