Fetching details from the dictionary...
awkward; clumsy; stiff; crude; unrefined; constrained
初対面でぎこちない会話だった。
The conversation was awkward at first.
初対面の二人の会話はぎこちなかった。
The conversation between the two meeting for the first time was awkward.
練習を重ねた結果、動きはもうぎこちなくない。
After repeated practice, the movements are no longer stiff.