Synonyms for Happened upon:

• adj.

  •discovered (adjective)
  • invented,
  • presented,
  • opened,
  • spotted,
  • detected,
  • unlocked,
  • revealed,
  • Explored,
  • exposed,
  • Espied,
  • recognized,
  • unveiled,
  • ascertained,
  • sighted,
  • real,
  • famous,
  • Unearthed,
  • Originated,
  • Shown,
  • identified,
  • well-known,
  • Disinterred,
  • searched out,
  • perceived,
  • learned,
  • observed,
  • disclosed.

• v.

  •come across (verb)
  • discover,
  • light upon,
  • bump into,
  • happen upon,
  • notice,
  • chance upon,
  • hit upon,
  • unearth,
  • stumble upon,
  • meet,
  • uncover.
  •find (verb)
  • smoke out,
  • strike,
  • come up with.
  •guess (verb)
  • take a shot at,
  • suspect,
  • surmise,
  • take a stab at,
  • size up,
  • reckon,
  • lump it,
  • suppose.
  •locate (verb)
  • pin down,
  • stumble on,
  • place,
  • determine,
  • zero in on,
  • hook,
  • search out,
  • establish,
  • meet with,
  • station,
  • read,
  • smell out,
  • get at,
  • lay one's hands on,
  • trip over,
  • position,
  • pick up on.
  •pick up (verb)
  • get,
  • take,
  • have,
  • buy.
  •strike (verb)
  • effect,
  • reach,
  • stumble across.

• Other synonyms:

  •adj.
  • discovered.
  •Other relevant words:
  • achieve,
  • acquire,
  • annex,
  • arrive at,
  • attain,
  • believe,
  • calculate,
  • catch,
  • chalk up,
  • chance,
  • collar,
  • come across,
  • come upon,
  • compass,
  • conjecture,
  • corral,
  • cull,
  • deduce,
  • deem,
  • descry,
  • detect,
  • dig up,
  • discern,
  • distinguish,
  • divine,
  • encounter,
  • espy,
  • estimate,
  • expose,
  • extract,
  • fancy,
  • fathom,
  • ferret out,
  • gain,
  • garner,
  • gather,
  • glean,
  • guesstimate,
  • hazard,
  • hypothesize,
  • identify,
  • infer,
  • judge,
  • learn,
  • locate,
  • make out,
  • observe,
  • open up,
  • opine,
  • penetrate,
  • perceive,
  • pick,
  • pinpoint,
  • postulate,
  • predicate,
  • predict,
  • presume,
  • pretend,
  • procure,
  • purchase,
  • reason,
  • recognize,
  • recover,
  • run across,
  • run into,
  • score,
  • secure,
  • seize,
  • select,
  • sight,
  • solve,
  • speculate,
  • spot,
  • suggest,
  • survey,
  • theorize,
  • think,
  • track down,
  • turn up,
  • venture,
  • work out,
  • lay bare,
  • scare up,
  • fall in with,
  • bring to light,
  • dare say,
  • get the hang of,
  • go out on a limb,
  • jump to a conclusion,
  • lay fingers on,
  • think likely,
  • trip on.

Antonyms for Happened upon:

• adj.

  • discovered
    hidden, lost, unfound.

• v.

  • come across
    miss.
  • find
    fall short, lose, neglect, avoid, overlook, fail, leave, pass by, misunderstand, forfeit.
  • guess
    ignore, abstain, reject, disbelieve, question, measure, wonder, prove, refuse.
  • locate
    depart, displace, move.
  • pick up
    sell, drop, worsen, free, lower, yield, weaken, surrender, throw away, spend, pass, release.
  • strike
    let go, give, offer, not touch, pass up, tap, be immune.