Resulting in both successes and failures
The definition of hit or miss is a term used to describe something that might be good sometimes and bad others, especially when you cannot predict when it will be good or bad.
An investigation or inspection made for the purpose of diagnosis.
To experiment is defined as to try out something new or to test a theory
To make an inquiry about (something); investigate or examine:
Nathaniel Hawthorne (1804-1864)
To study (something) thoroughly so as to present in a detailed, accurate manner:
A procedure for critical evaluation; a means of determining the presence, quality, or truth of something; a trial:
Find another word for trial-and-error. In this page you can discover 17 synonyms, antonyms, idiomatic expressions, and related words for trial-and-error, like: hit-and-miss, research and development, R and D, hit-or-miss, analysis, examination, experiment, cut and try, probe, study and tentation.