harmless

Từ điển Oxford Advanced Learner 8th

harm·less BrE [ˈhɑːmləs] NAmE [ˈhɑːrmləs] adjective
1. ~ (to sb/sth) unable or unlikely to cause damage or harm
• The bacteria is harmless to humans.
2. unlikely to upset or offend anyone
Syn: ↑innocuous
• It's just a bit of harmless fun.
Derived Words: ↑harmlessly ▪ ↑harmlessness

Thesaurus:
harmless [harmless harmlessly harmlessness] adj.
•Most bacteria are harmless to humans.
safe • |formal medical benign •
Opp: harmful
a harmless/benign substance
environmentally harmless/safe/benign

Example Bank:
•The substance is harmless to people.
•a small and seemingly harmless creature
•chemical wastes which have to be rendered harmless
•Most bacteria are harmless to humans.
•Safety glass will break into relatively harmless pieces when it is hit hard.
•Some apparently harmless drugs can be lethal when used in combination.