Unconsidered (adjective)

Not thought about or taken into account; neglected.

Origin:

From un- (not) + considered (thoughtful).

Examples:

1. The proposal was rejected as it was unconsidered and unrealistic.
2. The company's unconsidered approach to environmental regulations led to a fine.
3. His unconsidered action led to a major accident.
4. She had an unconsidered attitude towards her studies.
5. The politician's unconsidered promises led to a loss of support.