dependable
adj.reliable and steady. You can trust this person or thing to do what they are supposed to do every time.
adj.consistently reliable in performance or character. Often used to describe employees, machinery, or vehicles that function without failure.
“She is a dependable worker who never misses a deadline.”
“The old truck is not very fast, but it is dependable enough for short trips around the farm.”
“In an era of volatile markets, investors often seek out dependable assets that provide modest but steady returns regardless of economic shifts.”
Typically used both attributively before a noun and predicatively after linking verbs like 'be' or 'seem'.
“The lakeshore offered fresh water, edible plants, animals for hunting, raw materials for tools, and a dependable source of firewood needed to maintain fires.”
“Offshore wind is more dependable but it involves large, site-specific engineering projects that cannot be replicated in the same way, and so have not seen the same sustained falls in cost.”
From depend + -able.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.