to be alarmed; to be frightened

terrified

afraid; frightened; to fear

for fear that; lest; also written 惟恐

trypophobia (abbr. for 密集恐懼症|密集恐惧症[mi4 ji2 kong3 ju4 zheng4])

variant of 唯恐[wei2 kong3]

to support terrorism; abbr. for 支持恐怖主義|支持恐怖主义[zhi1 chi2 kong3 bu4 zhu3 yi4]

(attributive) terrorist

social phobia (abbr. for 社交恐懼症|社交恐惧症[she4 jiao1 kong3 ju4 zheng4])

secure in the knowledge that one has backing

scary to think about (coll.) (coined c. 2013)

in fear and trepidation (idiom); in reverence before your majesty (court formula of humility)