| surely(adverb, likely, certainly, undoubtedly, doubtless) |
| maybe(adverb, likely, possible, probable, credible) |
| perchance(adverb, likely, possible, probable, credible) |
| presumably(adverb, likely, reasonably, probably, presumptively) |
| presumedly(adverb, likely, possible, probable, credible) |
| reasonable(adjective, sound, sensible, rational, likely) |
| credible(adjective, likely, possible, probable, undoubted) |
| anticipated(adjective, likely, possible, probable, credible) |
| expected(adjective, likely, possible, probable, credible) |
| plausible(adjective, clear, sound, reasonable, sensible) |
| indubitable(adjective, likely, possible, probable, undoubted) |
| possible(adjective, likely, probable, undoubted) |
| undeniable(adjective, likely, possible, probable, undoubted) |
| undoubted(adjective, likely, possible, probable) |
| unmistakable(adjective, likely, possible, probable, undoubted) |
| unquestionable(adjective, likely, possible, probable, undoubted) |
| apt(adjective, likely, possible, probable, credible) |
| believable(adjective, likely, possible, probable, credible) |
| disposed(adjective, likely, possible, probable, credible) |
| feasible(adjective, likely, possible, probable, credible) |