たしかに (translations)→ actually admit admittedly definitely despite distinctly do evidently exactly forsooth goddam indeed maybe namely obviously question realize really still strictly sure true unmistakably very well yes
まさか (translations)→ certainly darling forget hardly impossible Jesus no nohow presumably surely
具体的な (translations)→ concrete definite exact positive practical specific substantial tangible tangibly visible
現実的な (translations)→ hard-boiled hardheaded pragmatic real realistic substantive
実際の (translations)→ active effectual real-world