communicatif

Je lui demandai ce à quoi il avait assisté mais il n'était pas très communicatif.

I asked him about what he witnessed, but he wasn't very forthcoming.

Tu as peut-être raison, j'aurais dû être plus communicatif, mais j'essayais de ménager tes sentiments.

Maybe you're right and I should have been more forthcoming, but I was trying to spare your feelings.