Hardy

adj.resilient, capableeveryday

What it means

Able to stay strong and functional in demanding conditions.

Reach for it when describing people, plants, or materials that tolerate hardship

Only the hardiest seedlings remained green after the late frost.

everyday
sturdy
solid construction or physical build provides the strength
not when Sturdy does not necessarily mean able to handle climate, scarcity, or disease.
everyday
tough
resistance to rough use or hardship is the focus
not when Tough can imply emotional hardness, which hardy usually does not.
warm
rugged
outdoor toughness and an unfussy character are attractive
not when It can suggest a rough appearance that may be irrelevant or unwelcome.
professional
durable
an object keeps its usefulness through wear
not when People and living things sound mechanical when durable is used as character praise.
professional
resilient
recovery after pressure matters more than mere survival
not when It is less precise for a plant that tolerates cold without first being damaged.
professional
robust
strength and reliable functioning need emphasis
not when Robust may describe design capacity, not endurance in hostile conditions.
formal
weather-resistant
a product's protection from outdoor exposure must be explicit
not when This technical phrase says nothing about broad strength or personal courage.
literary
stalwart
a person remains loyal and strong through difficulty
not when Choose another word for plants or equipment; stalwart chiefly praises people.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.