| honest injun(expression, adjective, certain, substantial, real) |
| honest to God(expression, adjective, idiom, certain, substantial) |
| in isolation(expression, adverb, seriously, actively, thoughtfully) |
| in repair(expression, adverb, seriously, actively, thoughtfully) |
| in reserve(expression, adverb, seriously, actively, thoughtfully) |
| indisputable |
| indisputably(adverb, really, truly, unquestionably, authentically) |
| indubitable |
| intense(adjective, sober, serious, solemn) |
| losing(adverb, seriously, actively, thoughtfully, purposefully) |
| natural(adjective, honest, genuine, legitimate) |
| no fooling(expression, adjective, determined, thoughtful, sober) |
| no nonsense(expression, adjective, determined, thoughtful, somber) |
| no strings attached(expression, idiom, adverb, positively, unmistakably) |
| not in service(expression, idiom, adverb, seriously, actively) |
| objective(adjective, solid, material, real, positive) |
| on the bottom(expression, idiom, adverb, seriously, actively) |
| on the money(expression, idiom, adverb, positively, unmistakably) |
| on the nether side(expression, idiom, adverb, seriously, actively) |
| on the underside(expression, idiom, adverb, seriously, actively) |