| stimulant(noun, medicine, drugs, medicals) |
| stimulative(adjective, effect, affect, characteristics) |
| analeptic(noun, medicine, drugs, medicals) |
| annoying(adjective, effect, affect, characteristics) |
| painful(adjective, effect, affect, characteristics) |
| stimulating(adjective, effect, affect, characteristics) |
| disturbing(adjective, effect, affect, characteristics) |
| energizing(adjective, effect, affect, characteristics) |
| irritating(adjective, effect, affect, characteristics) |
| perturbing(adjective, effect, affect, characteristics) |
| stressful(adjective, effect, affect, characteristics) |
| troublesome(adjective, effect, affect, characteristics) |
| unsettling(adjective, effect, affect, characteristics) |
| galling(adjective, effect, affect, characteristics) |
| stimulating substance(expression, medicine, substance, stimulation) |
| vexatious(adjective, effect, affect, characteristics) |
| neurotic(noun, medicine, drugs, medicals) |
| bothersome(adjective, effect, affect, characteristics) |
| nasty(adjective, effect, affect, characteristics) |
| troubling(adjective, effect, affect, characteristics) |