1. Marked by firm determination or resolution; not shakable
   "a man of unbendable perseverence"
   - firm, steadfast, steady, stiff, unfaltering, unshakable, unwavering, unshakeable

See also: resolute

• League of Iroquois
• League of Nations
• league table
• league together
• leaguer
• leak
• leak fungus
• leak out
• leakage
• leaker
• Leakey
• leakiness
• leakproof
• leaky
• leal
• lean
• lean against
• lean back
• lean on
• lean-to
• lean-to tent
• Leander
• leaner
• leaning
• Leaning Tower