Grammar fix
highly effective
works very well
Very successful at achieving the desired result; something that really works well.
collocationB2common
Hear it in context
Notice where the phrase sounds natural.
This new medicine is highly effective at reducing pain.
In my opinion, online courses can be highly effective for students who need a flexible schedule.
Fix the pattern
One small grammar move makes it sound right.
Not: It's a high effective method.
Say: It's a highly effective method.
Use the adverb 'highly' (not 'high') before an adjective.
Which sounds natural?
Tap the one a native speaker would say.
'Highly effective' is the natural intensifier; 'exceedingly efficacious' is pompous.
Build natural chunks
Words that usually travel with it.
highly effective
- at
- extremely
- proven
- method