Another word for hard
The best other words for hard are resistant, difficult, forcefully and hardness.
- Most formal
- onerous, rigid, unyielding
- Strongest
- impossible, rigid, unyielding
- Casual
- tough, hefty, rock
- Instead of “pretty hard”
- difficult, tough, challenging
Hard /hɑrd/ (adjective, adverb, noun): Hard means firm or solid, difficult to do or endure, or done with great force or effort. In simple words: Not easy; needing a lot of effort or very solid. Below are 26 rated synonyms across 4 senses, plus 27 more related words. Tap a chip for its nuance and an example.
27 synonyms shown
Firm material · adjective
solid and not soft
Difficult task · adjective
difficult to do, understand, or endure
Forcefully · adverb
with great force, effort, or intensity
Solidly made · noun
a hard, solid substance or strong hit
Find the right strength and register
Drag the amber target to how strong and how formal you need the word to be. The three closest synonyms light up.
You asked for: equal strength, neutral register
- solid — emphasizes dense, unyielding substance
- stiff — often suggests rigidity rather than hardness
- firm — less about toughness, more about resistance to pressure
The dashed ring marks “hard” itself: neutral strength, neutral register.
Synonyms for hard in your sentence
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How to choose
Choose among these based on whether you mean physical texture, difficulty, or force. Hard is the broad default, but softer alternatives like firm, challenging, or vigorously often sound more precise and natural in context.
Antonyms of hard
- soft
- easy
- gentle
- weak
- flexible
- lightly
- malleable
All synonyms at a glance
| Synonym | Strength | Formality | Best for |
|---|---|---|---|
| firm | 2/5 | neutral | casual, business, academic |
| solid | 3/5 | neutral | casual, business, academic |
| stiff | 3/5 | neutral | casual, business |
| rigid | 4/5 | formal | academic, business |
| unyielding | 4/5 | formal | academic, creative, business |
| tough | 4/5 | casual | casual, business |
| resistant | 3/5 | formal | academic, business |
| difficult | 3/5 | neutral | academic, business, casual |
| challenging | 3/5 | neutral | academic, business, casual |
| arduous | 4/5 | formal | academic, business, creative |
| laborious | 4/5 | formal | academic, business, creative |
| trying | 3/5 | neutral | casual, business, creative |
| onerous | 4/5 | academic | academic, business |
| impossible | 5/5 | neutral | casual, business, academic |
| heavily | 3/5 | neutral | casual, business, academic |
| forcefully | 3/5 | formal | academic, business, creative |
| intensely | 4/5 | neutral | academic, business, creative |
| aggressively | 4/5 | neutral | business, academic, casual |
| vigorously | 4/5 | formal | academic, business |
| strongly | 3/5 | neutral | academic, business, casual |
| hefty | 3/5 | casual | casual, business |
| stone | 3/5 | neutral | casual, business, creative |
| rock | 3/5 | casual | casual, creative |
| firmness | 2/5 | formal | academic, business |
| hardness | 3/5 | formal | academic, business |
| impact | 3/5 | neutral | academic, business, casual |
Instead of “very hard”
One precise word usually beats an intensifier. See the full words instead of “very” list.
| Instead of | Try |
|---|---|
| pretty hard | difficult, tough, challenging |
| really hard | very difficult, extremely tough, quite challenging |
| kind of hard | a bit difficult, somewhat tough, slightly challenging |
More words related to hard
Looser matches and phrases, unrated. Check the sense before you swap one in, or compare it with “hard”.
- inflexible
- moribund
- compact
- dense
- packed
- compressed
- set
- sturdy
- durable
- sound
- substantial
- robust
- briskly
- powerfully
- stoutly
- strenuously
- severely
- painfully
- roughly
- harshly
- sternly
- strictly
- sluggishly
- tenaciously
- persistently
- ardently
- barely
Questions about synonyms for hard
What is the most formal or academic synonym for hard when it means difficult or burdensome?
Onerous is the most formal option when you mean burdensome or demanding, especially for obligations, rules, or duties. For general difficulty, arduous or laborious are also formal and academic-sounding.
What is a stronger alternative to hard for a difficult situation?
Tough is a stronger, more colloquial choice than hard, and impossible is stronger still when something cannot be done. Harder-sounding formal options like arduous or onerous add seriousness without claiming impossibility.
When should I use firm or rigid instead of hard?
Use firm for something pleasantly or suitably solid, and rigid when you want to stress lack of flexibility. Hard is broader and more neutral, so it is often the safest default for physical texture.
What is a more casual word for hard?
For a task or problem, people often say "tough," "difficult," or "challenging." For a material or object, "solid" or "sturdy" can fit better depending on the meaning.
What can I say instead of hard when I mean "very strongly"?
Common alternatives include "forcefully," "strongly," and "vigorously." The best choice depends on whether you mean physical effort, speech, or action.