Vocabulary consisting only from characters you are able to read
欠ける
kakeru
(1)to be chipped/to be damaged/to be broken/ (2)to be lacking/to be missing/ (3)to be insufficient/to be short/to be deficient/to be negligent toward/ (4)(of the moon) to wane/to go into eclipse/(P) ichidan, verb, vintrans
明らか
akiraka
obvious, evident, clear, plainmix
使う
cukau
(1)to use (a thing, method, etc.)/to make use of/to put to use/ (2)to use (a person, animal, puppet, etc.)/to employ/to handle/to manage/to manipulate/ (3)to use (time, money, etc.)/to spend/to consu godan, jlpt5, leda1, verb, vtrans
見つける
micukeru
(1)to discover, to find (e.g. an error in a book), to come across, to detect, to spot, (2)to locate, to find (e.g. something missing), to find fault, (3)to be used to seeing, to be familiar with ichidan, jlpt3, jlpt4, verb, vtrans
最も
mottomo
most, extremelymix
間
kan
sufix pro dobu trváníleda1
いつの間にか
icunomanika
before one knows, before one becomes aware of, unnoticed, unawaresjlpt3