Inconsiderate means not thinking about how others are affected. An inconsiderate neighbour, inconsiderate parking, thoughtless and inconsiderate.
It charges failure to think rather than intent to harm, which makes it a mild but genuinely stinging criticism — nobody wants to be told they did not consider. In British traffic law, driving without reasonable consideration for other road users is an offence in its own name. Note considerate, consideration.
1adjectiveinconsiderateNot thinking about how others are affected.
“It's inconsiderate to play loud music late at night when your neighbours are sleeping.”
synonyms: thoughtless, selfish
inconsiderate is a quality of thoughtlessness.
From in- + considerate.
Etymology from Wiktionary, CC BY-SA