怠らずに
Adverb
1
adverb (fukushi)
carefully
怠る
Common
Godan
Transitive
1
Godan verb with 'ru' endingtransitive verb
to neglect;to be negligent in;to be neglectful of;to fail to do;to leave undone;to avoid (doing);to shirk;to be unmindful of
あなたは「ありがとう」と言うことを怠った。
You neglected to say "Thank you."
2
Godan verb with 'ru' endingintransitive verb
dated term
to improve (of an illness);to get better