WordWeb Online

1. Worthy of reliance or trust
   "a dependable worker"
   - reliable
    
2. Worthy of being depended on
   "a dependable worker"
   - honest, reliable, true
    
3. Consistent in performance or behaviour
   "dependable in one's habits"
   - rock-steady, steady-going
    
4. Financially sound
   "a dependable investment"
   - good, safe, secure

See also: certain, dependableness, sound, steady, sure, tested, time-tested, tried, tried and true, trustable, trustworthy, trusty, undeviating

Antonym: undependable