cabinet minister ca·bi·net·minister uncommon noun 1. a person who is a member of the cabinet Synonymscabinet minister 2. the job of a senior minister who is a member of the cabinet Synonymscabinet minister Related words Broader terms minister Narrower terms Chancellor of the ExchequerChief SecretaryHome SecretaryLord ChancellorLord Privy SealTreasury Parts cabinet WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.