1. Marked by firm determination or resolution; not shakable
   "unwavering loyalty"
   - firm, steadfast, steady, stiff, unbendable, unfaltering, unshakable, unshakeable 
2. Not showing abrupt variations
   - level

See also: resolute, steady, unwaveringly

• semantic error
• semantic memory
• semantic relation
• semantic role
• semantically
• semanticist
• semantics
• semaphore
• semaphore plant
• Semarang
• semasiology
• sematic
• semblable
• semblance
• sememe
• semen
• semester
• semester hour
• semestral
• semestrial
• semi
• semi-abstraction
• semi-automatise
• semi-automatize
• semi-climber