well-founded

Definitions

Based on solid evidence, sound reasoning, or good justification.

In mathematics and logic, describing a relation that has no infinite descending chains, ensuring that induction can be applied.

Examples

The scientist argued that her theory was well-founded and supported by extensive empirical data.

His concerns about the project's timeline were well-founded, as the team had already missed several key milestones.

Synonyms

justified reasonable valid grounded logical sound substantiated

Antonyms

unfounded baseless groundless unjustified illogical unsupported fallacious