"steadiest" in the adjective sense
1. steady
not subject to change or variation especially in behavior
"a steady beat"
"a steady job"
"a steady breeze"
"a steady increase"
"a good steady ballplayer"
2. firm, steady, unfluctuating
not liable to fluctuate or especially to fall
"stocks are still firm"
3. steady
securely in position not shaky
"held the ladder steady"
4. firm, steadfast, steady, stiff, unbendable, unfaltering, unshakable, unwavering
marked by firm determination or resolution not shakable
"firm convictions"
"a firm mouth"
"steadfast resolve"
"a man of unbendable perseverence"
"unwavering loyalty"
5. regular, steady
relating to a person who does something regularly
"a regular customer"
"a steady drinker"
6. steady
not easily excited or upset
"steady nerves"
Source: WordNet® (An amazing lexical database of English)
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