Synonyms for Vigorous

Synonyms starting with letter U

• unflagging
• unyielding
• untiring
• upbeat

  go-getting
• unwavering
• uncompromising
• unequivocal
• unfaltering
• unrestrained

  strenuous
• up-and-coming
• unwearied
• unimpaired
• up and coming
• uncontrolled

  strenuous
• unqualified
• unfailing
• unswerving
• unbridled

  strenuous
• unwearying
• unremitting
• undamaged
• unhurt
• uninjured
• unsparing
• unflinching

  resolute
• unmistakable
• urgent
• uphill
• unambiguous
• unrelenting
• unused
• undimmed
• unfaded
• unwithered
• unconscionable
• undue
• urging
• unblemished
• undecayed
• up to snuff