CEDICT
overeager; impatient; (too) keen; quick-tempered
Wiktionary
焦急。如:「你别这麽猴急,等水开了再喝也不迟!」也作「喉急」。
重編國語辭典
焦急,心急
維基詞典
classifier: 隻
I think Tom is a bit too impatient.
I think that Tom is a bit too impatient.
Source: Tatoeba