nonefficacy
Absence of efficacyAbsence of efficacy.
Meaning
1 senses(uncountable)Absence of efficacy.
Origin
From non- + efficacy.From non- + efficacy.
Wiktionary, CC BY-SA 4.0 · source
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable