かちかちticktock, chinking (e.g. of a hammer against rock), knocking, clicking, clacking, clattering, dry and hard, (frozen) stiff, hidebound, die-hard, stubborn, obstinate, bigoted, scared stiff, tense, nervous, frightened

緊張(きんちょう)のせいで全身(ぜんしん)がカチカチです。

Due to tension, my whole body is stiff. {ticktock, chinking (e.g. of a hammer against rock), knocking, clicking, clacking, clattering, dry and hard, (frozen) stiff, hidebound, die-hard, stubborn, obstinate, bigoted, scared stiff, tense, nervous, frightened}

冷凍庫(れいとうこ)の中(なか)で炊(た)いたご飯(はん)がかちかちに凍(こお)っている。

The rice cooked and placed in the freezer is frozen stiff. {ticktock, chinking (e.g. of a hammer against rock), knocking, clicking, clacking, clattering, dry and hard, (frozen) stiff, hidebound, die-hard, stubborn, obstinate, bigoted, scared stiff, tense, nervous, frightened}

時計(とけい)のカチカチという音(おと)が気(き)になってなかなか眠(ねむ)れません。

The ticking sound of the clock bothers me and I can't easily fall asleep. {ticktock, chinking (e.g. of a hammer against rock), knocking, clicking, clacking, clattering, dry and hard, (frozen) stiff, hidebound, die-hard, stubborn, obstinate, bigoted, scared stiff, tense, nervous, frightened}

監督(かんとく)：「ほとんどの役者(やくしゃ)が初(はつ)舞台(ぶたい)ではかちかちになってしまうんだ。」

Director: "Most actors end up being scared stiff in their first stage performance." {ticktock, chinking (e.g. of a hammer against rock), knocking, clicking, clacking, clattering, dry and hard, (frozen) stiff, hidebound, die-hard, stubborn, obstinate, bigoted, scared stiff, tense, nervous, frightened}

カチカチになった餅(もち)に水滴(すいてき)を少(すこ)し垂(た)らして温(あたた)めたらモチモチになりました。

When I sprinkled a few drops of water on the mochi that had become dry and hard, and heated it, it became soft and chewy. {ticktock, chinking (e.g. of a hammer against rock), knocking, clicking, clacking, clattering, dry and hard, (frozen) stiff, hidebound, die-hard, stubborn, obstinate, bigoted, scared stiff, tense, nervous, frightened}