The term 'uphill climb' can be described by three crossword solutions: ASCENT (6 letters), SLOG (4 letters), and itsan (5 letters). ASCENT is defined as a movement upward, usually in a gradual or continuous way. SLOG is defined as a long, hard journey or task that requires a lot of effort. Finally, itsan is an acronym for 'it's a steep and narrow climb.' All three words describe the difficulty of an uphill climb, which is a journey that requires a lot of effort and is often steep and narrow.