IPA: /ɪmˈpɒlɪtɪk/
KK: /ɪmˈpɒlɪtɪk/
Not showing good judgment or tact; unwise or inappropriate in a social or political context.
His impolitical remarks during the meeting made everyone uncomfortable.
Impolitical is formed from "im-" (meaning not) and "political" (from Greek "politikos", meaning of or relating to citizens or the state). The word describes something that is not related to politics or political matters.
Think of 'not' ('im-') being added to 'political', which helps you remember that 'impolitical' means something that is not related to politics.