inobservance
noun
in·ob·ser·vance ˌin-əb-ˈzər-vən(t)s 
1
: lack of attention : heedlessness
2
: failure to fulfill : nonobservance
inobservant
ˌin-əb-ˈzər-vənt
adjective 
Word History
Etymology
French & Latin; French, from Latin inobservantia, from in- + observantia observance
First Known Use
1611, in the meaning defined at sense 1
inobservance
noun
as in inattention
Synonyms & Similar Words
Relevance
- inattention
- inattentiveness
- inadvertency
- inadvertence
- heedlessness
- negligence
Antonyms & Near Antonyms
- care
- pains
- concentration
- closeness
- observation
- heed
- conscientiousness
- attention
- carefulness
- scrupulousness
- focus
- observance
- meticulosity
- meticulousness
- advertency
- heedfulness
- mindfulness
- vigilance
- alertness
- watchfulness
- advertence